Answer :
lets use substitution
y=7x-10
y=-3
so
-3=7x-10
7=7x
1=x
now lets check
y=7(1)-10
y=-3
therefore both equations have the same value
y=7x-10
y=-3
so
-3=7x-10
7=7x
1=x
now lets check
y=7(1)-10
y=-3
therefore both equations have the same value
