х+2 (у +6)=3х-у и 5х-у+3=4(х-у)

Question

х+2 (у +6)=3х-у и 5х-у+3=4(х-у)

Answer 1

x+2y+12=3x-y

x-3x+12=-2y-y

3y=2x+12

y=2(x+6)/3

 

5x-y+3=4x-4y

5x-4x+3=y-4y

x+3=-3y

3y=-x-3

y=-x-3/3