Questions on Algebra: Systems of Linear Equations answered by real tutors!

Tutors Answer Your Questions about Linear-systems (FREE)

Question 830976: How do you solve x-2/3 * y+1/5 =2
X+2/7-y+5/3=-2
Click here to see answer by Alan3354(69443)

Question 831008: How do i solve, I know the answer is 8 but i dont know how to get it.
1/2+2/x=3/4
Click here to see answer by stanbon(75887)

Question 831016: What is the linear equation for
"the line is perpendicular to y=2x+1 and passes through (-2,3)"
thank you
Click here to see answer by stanbon(75887)

Question 831016: What is the linear equation for
"the line is perpendicular to y=2x+1 and passes through (-2,3)"
thank you
Click here to see answer by josmiceli(19441)

Question 831049: How do I change the following to standard form;
y = 3/4x -2
(3/4 as in three over four, a fraction.)

Thanks again!
Click here to see answer by MathLover1(20850)

Question 831052: How do I graph the line that is perpendicular to x=7 and going through the point (-2,-6)?? Thank you!!!!
Click here to see answer by josgarithmetic(39617)

Question 831053: What is the equation of the line that is is parallel to
y= -x + 3
and passes through the point (-4, 5)?

I understand that -x = -1x = slope
and that since the lines are parallel, they have the same slope, but how do i find the y-intercept? if it passes through (-4,5), would the y-intercept be 5?
thank you!
Click here to see answer by josgarithmetic(39617)

Question 831184: WRITE A SYSTEM OF EQUATIONS TO REPRESENT THE SITUATION. THEN, SOLVE THE SYSTEM BY SUBSTITUTION. -->
The length of a rectangle is 3 more than its width. The perimeter of the rectangle is 58 cm. What are the rectangle's dimensions?
Click here to see answer by oscargut(2103)

Question 831183: solve this using substitution.
1/2x + 1/3y = 5
1/4x + y = 10
Click here to see answer by oscargut(2103)

Question 831200: Y= 6x + 22
Y= -8
Where would the lines intersect in a linear equation using the subtraction method?
Click here to see answer by stanbon(75887)

Question 831280: (1+r)/(9+r)=3/4
Click here to see answer by erica65404(394)

Question 831286: solve using the substitution method r-7s=0 and 9r-2s=61
Click here to see answer by Alan3354(69443)

Question 831294: Solve the system of linear equations:
6x+4y=18
9x+6y=27
If the system has infinitely many solutions, express your answer in the form x=x and y as a function of x
x=
y=
Click here to see answer by Elomeht(22)

Question 831337: Determine whether the system is consistent, inconsistent, or dependent.
5x+4y=-10
10x+8y=-20
Click here to see answer by reviewermath(1029)

Question 831310: Is this table linear?
x y
-----
5 8
10 11
30 20
50 25
100 36
How do you tell? And how would you find the formula?
Click here to see answer by Alan3354(69443)

Question 831328: solve using the elimination method 6x-2y=14 and 2x+5y-18
Click here to see answer by mananth(16946)

Question 831349: 3x − 2 ≤ 4
Click here to see answer by wth12345(3)

Question 831326: 2x = 2y + 40
3y = 72 - 9x
Click here to see answer by Fombitz(32388)

Question 830878: write an equation in slope intercept form for the line that is parallel to the given line and that passes through the given point.
y=1/2x+5;(4,-3)
Click here to see answer by Fombitz(32388)

Question 831420: one number is greater than another number x by 5. also the sum of thrice the larger and twice the other number is 50. find the numbers
Click here to see answer by jean14(9)

Question 830068: The base of an isosceles triangle is two-fifths the length of each of the congruent sides. The perimeter of the triangle is 60 cm. How long is the base
Click here to see answer by jean14(9)

Question 831466: solve each system by graphing tell whether the system has one solution, infinetly many solutions, or no solutions
y=3x-7
y=-x+1

Click here to see answer by Fombitz(32388)

Question 831496: solve each system by graphing tell whether the system has one solution, infinetly many solutions, or no solutions
y=3x-7
y=-x+1
Click here to see answer by hovuquocan1997(83)

Question 831590: solve by the elimination method p=40+q and 7p=-9q+360
Click here to see answer by stanbon(75887)

Question 831590: solve by the elimination method p=40+q and 7p=-9q+360
Click here to see answer by Menjax(62)

Question 831598: solve by the elimination method 0.1x+0.006y=0.5 and 0.3x-0.2y=3.4
Click here to see answer by Alan3354(69443)

Question 831608: solve by the elimination method 0.1x+0.06y=0.5 and 0.3x-0.2y=3.4
Click here to see answer by josgarithmetic(39617)

Question 831654: This should be super easy, but I am not doing something right, however I cannot figure out what it is. I know that the answer is 100 (from creating a table), but I need to show my work algebraically. When I do it algebraically I can't get the right answer for X. Please help!!!!
$8(X)=$200+$10(X-40)
Click here to see answer by josgarithmetic(39617)

Question 831595: solve by the elimination method p=40+q and 7p=-9q+360
Click here to see answer by TimothyLamb(4379)

Question 831879: Solve for n:
R=M(1+n)

What I have done:
R=M*1+M*n
R=M+Mn
R-M=M-M+Mn
R-M=Mn
R-M/M=Mn/M
R-M/M=n

Click here to see answer by Fombitz(32388)

Question 831816: Solve the equation for the indicated variable.
a=p(1+(i/100))^2; for i
i= ? (smaller value)
i= ? (larger value)
Click here to see answer by Alan3354(69443)

Question 831959: what is
3x + 2y = 23
1/2x - 4 =y
Click here to see answer by Alan3354(69443)

Question 832022: How do I change the following into the equation of a line in standard form (Ax+By+C=0) ;
y = 3/4x - 2
?
Thank you!
Click here to see answer by richwmiller(17219)

Question 832022: How do I change the following into the equation of a line in standard form (Ax+By+C=0) ;
y = 3/4x - 2
?
Thank you!
Click here to see answer by jim_thompson5910(35256)

Question 832022: How do I change the following into the equation of a line in standard form (Ax+By+C=0) ;
y = 3/4x - 2
?
Thank you!
Click here to see answer by erica65404(394)

Question 832167: Solve these systems of equations for X.
1)y=4x-6
y=6x+3
2)16-x=y
4x-4=y
Click here to see answer by TigerAlgebra(40)

Question 831942: I would like to know would the following be considered an inconsistent solution?
f(x)=2x-8
g(x)=10x+4
I am having difficulty trying to solve this equation.
Click here to see answer by Fombitz(32388)

Question 832454: Quentin was challenged to a half-court shooting completion. For every half-court shot he makes, he will earn 20 points. For each half-court shot he misses, he will lose five points. After 20 half-court shots, Quentin has zero points. How many half-court shots did he make?
Click here to see answer by math-vortex(648)

Question 832475: How do you solve two linear equations at the same time?
Click here to see answer by Alan3354(69443)

Question 832663: Graph the equation
y + 3 = 1/2 (x - 3)
Click here to see answer by math-vortex(648)

Question 832732: is 4xy+2y=9 a linear equation .?
Click here to see answer by stanbon(75887)

Question 832783: I need you to solve these systems by substitution
Y=0.5x+2
-y=-2x+4
Click here to see answer by josgarithmetic(39617)

Question 832783: I need you to solve these systems by substitution
Y=0.5x+2
-y=-2x+4
Click here to see answer by LinnW(1048)

Question 832783: I need you to solve these systems by substitution
Y=0.5x+2
-y=-2x+4
Click here to see answer by MathTherapy(10552)

Question 832845: (9x - 14y) + (45x + 52y)

Click here to see answer by Fombitz(32388)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515