SOLUTION: 2x+4y=24
-15x+10y=-20
x=? y=?
Algebra.Com
Question 141230: 2x+4y=24
-15x+10y=-20
x=? y=?
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
2x+4y=24 multiply this equation by -2.5 & add.
-15x+10y=-20
-5x-10y=-60
---------------------
-20x=-80
x=-80/-20
x=4 answer.
2*4+4y=24
8+4y=24
4y=24-8
4y=16
y=16/4
y=4 answer.
RELATED QUESTIONS
Use substitution to solve:
x=3y-2
2x+4y=16
this is what I got:
2(3y-2)+4y=16
(answered by josmiceli)
solve for x and y in 15x+10y=60... (answered by Theo)
x+5y=10
-2x-10y=... (answered by elima)
x-5y=10... (answered by richwmiller,JBarnum)
x^2+11x-18=
y^2+10y+24=
x^2-2x-24=... (answered by Alan3354,ikleyn)
1.8x+3y=3 2.x+y=7 3.4x+2y=0 4.x+y=6 5.6x=7y=26 6.3x-8y=10 7.4x+3y=-4
4x+5y=-23 (answered by )
2x+4y=6x-10y (answered by longjonsilver)
I need to know what the following four equations are in slope intercept form 5x-10y=-20 (answered by solver91311)
x+5y=10
-2x-10y=-20
2x+10y=20
-2x-10y=-20
0 = 0
Just double check to make (answered by elima)