Algebra-1

To solve the system of equations by substitution, we'll substitute the expression for y from the first equation into the second equation and then solve for x. Let's go through the process step by step:

Given equations:
1) y = 2x - 4
2) 7x - 2y = 5

Substitute y from equation 1) into equation 2):
7x - 2(2x - 4) = 5

Simplify:
7x - 4x + 8 = 5
3x + 8 = ...