I would use the process of elimination. Divide 13 from both sides
2x+7y=-57 y=-7 then plug in y to an equation
-6x-8y=80 2x+7(-7)=-57 multiple
multiple the first equation by 3 2x-49=-57 add 49 to both sides
6x+21y=-171 2x=-8 divide two from both sides
-6x-8y=80 x=-4
combine like terms So your things would be x=-4 and y=-7
13y=-91 And itd make the solution (-4,-7).
Answer:
x = -5
Step-by-step explanation:
-3 - 3x = -4( 2x + 7 )
Distributive property
-4 * 2x - 4 * 7
-3 - 3x = -8x - 28
Add 3 on both sides
-3 + 3 - 3x = -8x - 28 + 3
-3x = -8x - 25
Add 8x on both sides
-3x + 8x = -8x + 8x - 25
5x = -25
Divide by 5 on both sides to isolate the variable
5x/5 = -25/5
x = -5
Hope this helped!
have a supercalifragilsticexpialidocious day!
