Questions on Algebra: Expressions involving variables, substitution answered by real tutors!

Algebra -> Algebra -> Expressions-with-variables -> Questions on Algebra: Expressions involving variables, substitution answered by real tutors! Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

Algebra: Expressions involving variables, substitution

Solvers

Lessons

Problems, free tutors

Quiz

In Depth

Tutors Answer Your Questions about Expressions-with-variables (FREE)

Question 131635: in my homework it says to give the point that represents the intersections of the lines? i dont get how to solve the problem. i would like to know what is the equation or solution to the problems so i can do the rest by myself.the problem is y=x and 4x+5y=9 how do u find where the intersections of the lines is

Click here to see answer by 067isa(13)

Question 131967: My question is simplify 3ab to the power of zero how do i do that?
Click here to see answer by Fombitz(2113)

Question 131971: on my home work it says simplify 5x^-4
Click here to see answer by stanbon(26259)

Question 131970: on my home work it says simplify 5x to the power of -4 how do i do that?
Click here to see answer by solver91311(5072)

Question 131768: Hello,
My 8th grader is stuck on problems involving systems of equations and inequality, or substition. Can you please explain the following problem?
How to find X and Y?
Y=x+3
Y=2x+4
Click here to see answer by stanbon(26259)

Question 132047: A cyclist traveling at a constant speed completes 3/5 of a trip in 1 1/2 hrs. In how many additional hours will the cyclist complete the entire trip?
Click here to see answer by TakeATuition.com(57)

Question 132072: Translate to an algebraic expression. 26 less than t
Translate to an algebraic expression. 31 multiplied by n
Translate to an algebraic expression. Use x and y for any variables....the sum of three times a number plus four times another number.
Will someone please, please help me with these...thank you so much
Click here to see answer by checkley71(8405)

Question 131985: -x+8y=-32
3x-y=27
Click here to see answer by harecurtis(6)

Question 132063: Please help me with this..Thanks.
Translate to an algebraic expression. 26 than than t
Click here to see answer by rapaljer(3620)

Question 132065: Please help. i am at a total loss. Thanks
Translate to an algebraic expression. The sum of c and q.
Translate to an algebraic expression. 31 multiplied by n.
Translate to an algebraic expression. Use x and y for any vairiables.
The sum of three times a number plus four times another number.
Translate to an algebraic expression. The product of 28% and some number.
Whatever help you can give me with this will be greatly appreciated. Thank you so much.
Click here to see answer by stanbon(26259)

Question 132472This question is from textbook Algebra 1

: 3b+2a=2 and -2b+a=8This question is from textbook Algebra 1

Click here to see answer by jim_thompson5910(13787)

Question 132477This question is from textbook Algebra 1

: y=x+5 and -3x+3y=15This question is from textbook Algebra 1

Click here to see answer by jim_thompson5910(13787)

Question 132517: (2e-2f)(2f+8)
Click here to see answer by stanbon(26259)

Question 132549: Solve for W
V=LWH
Solve for Z
w/x=y/z
Help!
Click here to see answer by elima(1433)

Question 132549: Solve for W
V=LWH
Solve for Z
w/x=y/z
Help!
Click here to see answer by tutorcecilia(2042)

Question 132805: Please help me simplify the expression:
13[6^2/(5^2-4^2)+9], I got 169 as the answer.
Click here to see answer by solver91311(5072)

Question 133005: Multiply and simplify.
49^2/5x^2-20x+20 * 5x-10/7x

Click here to see answer by jim_thompson5910(13787)

Question 133000: Factor.
56 - 15w + w^2
I would appreciate any help you can give.
Click here to see answer by jim_thompson5910(13787)

Question 132999: Factor completely.
36b^2 - 121

Click here to see answer by jim_thompson5910(13787)

Question 133173This question is from textbook
: (x+1)(x+2)>x(x+1)=0
(x+1) (x+2)>(x+1)-x=0
2(x+1)>-x=0
-x=2This question is from textbook

Click here to see answer by oscargut(682)

Question 133173This question is from textbook
: (x+1)(x+2)>x(x+1)=0
(x+1) (x+2)>(x+1)-x=0
2(x+1)>-x=0
-x=2This question is from textbook

Click here to see answer by rjlosardo(1)

Question 133435: Factor Completely? 4x^2+9, & 5t^2 + c^2
Click here to see answer by edjones(3292)

Question 133609: What is the answer to these systems of equations using addition to eliminate one of the variables?
4a-6b=15
6a-4b=10

Click here to see answer by stanbon(26259)

Question 133632: This problem deals with the addition method, and I need help.
2a + 3b = -1
3a + 5b = -2
I need a lot of help, and thanks a lot!
Click here to see answer by checkley71(8405)

Question 133632: This problem deals with the addition method, and I need help.
2a + 3b = -1
3a + 5b = -2
I need a lot of help, and thanks a lot!
Click here to see answer by nycsharkman(136)

Question 133632: This problem deals with the addition method, and I need help.
2a + 3b = -1
3a + 5b = -2
I need a lot of help, and thanks a lot!
Click here to see answer by solver91311(5072)

Question 133922: they are 9 students buying an antena. they are spliding the amount in equall parts. If 3 more students participate in spliding the amount they would all pay $75 less. How much would the antena cost if they all pay equall amounts?
Click here to see answer by jojo14344(1483)

Question 134106This question is from textbook Algebra 1
: 2x-y=-4
-3x+y=-9This question is from textbook Algebra 1

Click here to see answer by oscargut(682)

Question 134113: I need help, this problem deals with the substitution method. Your help will be greatly appreciated.
x + y = 20
30x + 25y = 550
Click here to see answer by jim_thompson5910(13787)

Question 134355: help would be appreciated with this question, thanks.
4a-3ab-4ab+3b-6a

Click here to see answer by jim_thompson5910(13787)

Question 134763This question is from textbook prealgebra and introductory algebra
:

I have two more. y=3x+2, y=3x-4
then x+y=5, x-y=1 Thanks for any help I can get.This question is from textbook prealgebra and introductory algebra

Click here to see answer by checkley77(7035)

Question 134762: I have two more. y=3x+2, y=3x-4
then x+y=5, x-y=1 Thanks for any help I can get.
Click here to see answer by checkley77(7035)

Question 134761:
I need help quick. I need to see these two problems worked out in both the SUBSTITUTION and the ELIMINATION methods.
2x-3y=-1, 3x-4y=5 then 2x+3y=5, 9y=15-6x HELP
Click here to see answer by checkley77(7035)

Question 134799: n q
2 11
4 17
5 23
8 29
10 35
Whats is the rule of this algebraic expression?
Which one of these senetences best describes this rule.
Q=(3+N)*5 Q=3*(N+5) Q=3N+5
Click here to see answer by vleith(1977)

Question 134807This question is from textbook Algebra 1
: Can you help me solve:
5m+n=8
3m-4n=14This question is from textbook Algebra 1

Click here to see answer by vleith(1977)

Question 134807This question is from textbook Algebra 1
: Can you help me solve:
5m+n=8
3m-4n=14This question is from textbook Algebra 1

Click here to see answer by algebrapro18(206)

Question 134824: Tutor could you help me please by showing me what steps I need to take in multiplying and simplifying this math problem? Thank you very much.
x^2-2x-15/x^2+x-6 * x^2-4x-21/x^2-25
Click here to see answer by stanbon(26259)

Question 134830: I can't figure this one out..Tutor can you show how to rationize the denominator?
6/2+ square root of 3 thank you very much
Click here to see answer by josmiceli(3003)

Question 134829: Tutor could you please help me subtract and simplify this problem please.
x/x^2-3x+2 + 3/X^2+x-2
Thank you!
Click here to see answer by stanbon(26259)

Question 134831: Tutor how do I factor 3y^2-14y-24 do I have to find out what y is first? Thank you.
Click here to see answer by stanbon(26259)

Question 134810: may you please help me figure out why this Q=3N+5, is the rule to this expression here. When you figure out this problem, may you please tell me how i can write a rule for this? Thank you vey much
N Q
2 11
4 17
6 23
8 29
10 35
Click here to see answer by nycsharkman(136)

Question 135016This question is from textbook prealgebra and introductory algebra
: I need to see this worked out in the ELIMINATION METHOD quickly.
2x-3y=1-
3x-4y=5This question is from textbook prealgebra and introductory algebra

Click here to see answer by stanbon(26259)

Question 135049: solve systemes of equation by following the substitution method

5x-2y=18 2x-y=7
Click here to see answer by checkley77(7035)

Question 135112: 9s +9 for s=9
Click here to see answer by vleith(1977)

Question 135135: how do you solve -7/9+w= 2/3
Click here to see answer by stanbon(26259)

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