Answer:
x = 13/a+7
Explanation:
1. Combine all terms containing x.
(a+7)x=13
2. Divide both sides by a+7.
(a+7)x/a+7 (fraction) = 13/a+7 (fraction)
3. Dividing by a+7 undoes the multiplication by a+7.
9.5m questions
12.2m answers