Question

For the lengths AB, BC, and AC to equal 7,6, and 13 respectively, what is the
value of x?

Answer 1

x = 5

Explanation:

We know that AB = 2x - 3 and AB = 7, therefore:

2x - 3 = 7

2x - 3 + 3 = 7 + 3

2x = 10

2x / 2 = 10 / 2

x = 5