A triangle has one side that measures x, another side that measures 2x, and a third side that measures 5 less than x. The perime
ter is 31 inches. Which equation would you use to find the value of x? Explain your answer
A. x + 2x + x - 5 = 31
B. x + 2x + x + 5 = 31
C. x + 2x - x - 5 = 31
D. x + 2x - x + 5 = 31
1 answer:
1st side = x
2nd side = 2x
3rd side is x-5
so x +2x + x-5 = 31
answer is A
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