Question

Solve by substitution.
Y=x+3
Y=5x-5

Answer 1

Here you have two linear equations for 'y.'  Since you are to use the substitution method, replace 'y' in the first equation with '5x-5' from the second equation.  This eliminates 'y' and gives you a single equation in 'x.'  Please solve this equation for the numeric value of 'x.'

Answer 2

y=4x=-8 should be the right answer