three times the perimeter of a triangle is the same as 75 decreased by twice the perimeter. what is the perimeter of the triangl
e?
1 answer:
Let the perimeter be x.
3x = 75 - 2x
Add 2x from both sides:
5x = 75
Divide both sides by 5:
x = 15
Answer: The perimeter is 15 units.
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