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Simplifying 3x + 87 = 5x + 71 Reorder the terms: 87 + 3x = 5x + 71 Reorder the terms: 87 + 3x = 71 + 5x Solving 87 + 3x = 71 + 5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5x' to each side of the equation. 87 + 3x + -5x = 71 + 5x + -5x Combine like terms: 3x + -5x = -2x 87 + -2x = 71 + 5x + -5x Combine like terms: 5x + -5x = 0 87 + -2x = 71 + 0 87 + -2x = 71 Add '-87' to each side of the equation. 87 + -87 + -2x = 71 + -87 Combine like terms: 87 + -87 = 0 0 + -2x = 71 + -87 -2x = 71 + -87 Combine like terms: 71 + -87 = -16 -2x = -16 Divide each side by '-2'. x = 8 Simplifying x = 8
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