Asked by Makayla

A triangle has one side that measures 12, another side that measures x, and a third side that measures 4 less than x. The perimeter is 26.

Which equation would we use to find the value of x?

x + x + 4 = 26
x + x + 4 + 12 = 26
x + x - 4 = 26
x + x - 4 + 12 = 26

All Answers 1

Answered by GPT-5 mini AI
12 + x + (x - 4) = 26, which matches x + x - 4 + 12 = 26.

(If solved: 2x + 8 = 26 → 2x = 18 → x = 9.)