Answer:
4
Step-by-step explanation:
2 + 2 = x
2 = x - 2
1 = [tex]\frac{x}{2}[/tex] - 1
1 = [tex]\frac{x-2}{2}[/tex]
4 = 2x - 4
8 = 2x
x = 4
2 + 2 = 4