If x = -7, then 2nd equation is -7x + 3y = 64 : did you make a typo?SILVER said:how do you solve this?
7x+4y=-29
-7x-3y=64
My math book says there's an easier way to solve it than by adding the top by 3 and the bottom by 4 but I cant figure it out. when i tried to solve I got x=350 but the answer is x=-7 please help!
SILVER said:oops im sorry it was a typo. The real question was:
7x+4y=-29
-7x+3y=64
and my book says there's an easier way to solve it than multiplying the top by 3 and the bottom by -4