Solve this system 5x-2y=-5,y-5x=3 by substitution

Answer 1

5x -2y = -5
-5x +y = 3
Substitute y-3 for 5x in the first equation.
y -3 -2y = -5
y = 2
With that value for y, use either of the first two equations to solve for x.

5x - 4 = -5
Solve for x.