Afarmer wants to build a fence to enclose a triangular field that is 180 feet on each side. fence post cost $8.00 each. if he is going to put a post in each corner and a post every 6 feet along each side, how much will the farmer spend on fence posts?

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1. use commutative property to reorder the terms.2x+81=0.2. move the constant to right side by adding its opposite on both sides. 2x+81-81=0-81.2x=(-81).3. divide the equation on both sides.2x ÷ 2 = 81 ÷ 2.x = -81/2. your answer is -81/2. if you need to simplify it into a decimal, it’s -40.5.