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Simplifying 3x + -87 = x + 79 Reorder the terms: -87 + 3x = x + 79 Reorder the terms: -87 + 3x = 79 + x Solving -87 + 3x = 79 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. -87 + 3x + -1x = 79 + x + -1x Combine like terms: 3x + -1x = 2x -87 + 2x = 79 + x + -1x Combine like terms: x + -1x = 0 -87 + 2x = 79 + 0 -87 + 2x = 79 Add '87' to each side of the equation. -87 + 87 + 2x = 79 + 87 Combine like terms: -87 + 87 = 0 0 + 2x = 79 + 87 2x = 79 + 87 Combine like terms: 79 + 87 = 166 2x = 166 Divide each side by '2'. x = 83 Simplifying x = 83
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