Question

How do you solve −2x+7y=9 and 3x+2y=−1 using substitution?

Answer 1

Hope this helps. Have a nice day.

Answer 2

Answer:

Step-by-step explanation:

If u add two equation u will get

X+9y=8

X= 8-9Y

NOW Apply x in equation2

3 (8-9y)+2y=-1

24-27y+2y=-1

25=25y

Y=1

Now apply t in equation

×=8-9y

X= 8-9

×=-1

The answer is x= -1 ,y=1