Answer:
Explanation:
I have to assume that M is the midpoint of IG. Otherwise the problem can't be solved.
(x + 1)/2 = (2x -- 7)/2 Multiply both sides by 2. The 2s disappear.
x + 1 = 2x - 7 Add 7 to both sides.
x + 1 + 7 = 2x Combine
x + 8 = 2x Subtract x from both sides
8 = 2x - x Combine
8 = x