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

Question

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

unklerhaukus · Answer

the perimeter is the sum of the side lengths

anonymous · Answer

12+x+x-4=26
Therefore if you rearrange the left side, you get:
x+x-4+12=26

anonymous · Answer

thanks