Question

5x=-2+7y

x-7y=-34

Answer 1

5x=-2+7y
5x=7y−2
x=7y-2/5
7*y-2/5-7*y=-34
7y-2/5-7y=-34
5*(7y-2/5-7y)=5*-34
7y-2-7y*5=5*-34
7y−2+5*-7y=5*-34
7y−2−35y=-170
7y−35y−2=-170
-28y−2=-170
-28y=-170+2
-28y=-168
y=-168/-28
y=6

x=7*6-2/5
x=42-2/5
x=40/5
x=8