A 10-foot board is to be cut into 3 pieces. Two of the pieces will be the same length and one piece will be 2 feet longer than the other two. Which equation could be used to solve for the lengths?   x + x + x - 2 = 10 x + x + x = 10 + 2 x + x + x + 2 = 10 x + x + 2 x = 10

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A: topic - linear equation in one variable