Question

X+2y=2 and x-3y=7 by substitution method

Answer 1

x+2y=2

      y=2-x/2             ___________ 1

subs __1 on x-3y=7

x- 2-x/2=7

2x-2-x=14

x=16

Answer 2

X+2y=2

X-3y=7 X=7+3Y

7+3y+2Y=2

5Y=2-7

5Y=-5

Y=-1 X+2Y=2

X-2=2

X=4