Question

use the substitution method to solve 3x+2y=11 and x-2y=9

Answer 1

i can help you and you can try and help me

Answer 2

sounds good i don't know where to begin really

Answer 3

well first covert x-2y=9 to the formula y=mx+b

Answer 4

convert sorry

Answer 5

ok so 2y=x=9?

Answer 6

not plus +

Answer 7

not exactly well more like subtract x from both sides more like 2y=9-x and divide by two so you can have y alone

Answer 8

it would be y=-x+9/2 i think

Answer 9

then plug in y for the y in the paragraph so the equation would be 3x+2(-x+9/2)=11

Answer 10

then solve

Answer 11

Ok thank you!