Question

How do I solve: (using the substitution method) 2x+3y=-7 x=7-5y

Answer 1

You substitute your x into the first equation for example: 2(7-5y)+3y=-7

Answer 2

and you get 14-10y+3y=-7

Answer 3

then you subtract 14 from both sides of th equal sign

14-10y+3y=-7
-14 -14

Answer 4

-10y+3y=-7

Answer 5

then combine like terms so you get -7y=-7

Answer 6

divide each side by -7

Answer 7

and y= 1

Answer 8

Now since you've got your y then you plug it in to the x equation now

Answer 9

x=7-5(1)
x=2(1)
x=2

Answer 10

So, y=1 x=2

Answer 11

Thank you!!!

Answer 12

You're welcome