Question

AC = 16, AB = x + 1, and BC = x + 7. What is the measure of the length of AB? HELP

Answer 1

5

Explanation:

AC=AB+BC

so 16=x+1+x+7

which simplifies to 16=2x+8

subtract eight from both sides to get 8=2x

then divide by 2 to get that x=4

AB=x+1, which substitutes into 4+1=5