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Simplifying x + 40 = 2x + -15 Reorder the terms: 40 + x = 2x + -15 Reorder the terms: 40 + x = -15 + 2x Solving 40 + x = -15 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 40 + x + -2x = -15 + 2x + -2x Combine like terms: x + -2x = -1x 40 + -1x = -15 + 2x + -2x Combine like terms: 2x + -2x = 0 40 + -1x = -15 + 0 40 + -1x = -15 Add '-40' to each side of the equation. 40 + -40 + -1x = -15 + -40 Combine like terms: 40 + -40 = 0 0 + -1x = -15 + -40 -1x = -15 + -40 Combine like terms: -15 + -40 = -55 -1x = -55 Divide each side by '-1'. x = 55 Simplifying x = 55
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