X-y=4 x+y=8 the x-coordnate of the solution to the system shows

x = 6

Step-by-step explanation:

Given the 2 equations

x - y = 4 → (1)

x + y = 8 → (2)

Adding the 2 equations term by term eliminates the y - term

(x + x) + ( - y + y) = (4 + 8), that is

2x = 12 (divide both sides by 2)

x = 6