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Simplifying x + -7 = 2x + 13 Reorder the terms: -7 + x = 2x + 13 Reorder the terms: -7 + x = 13 + 2x Solving -7 + x = 13 + 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. -7 + x + -2x = 13 + 2x + -2x Combine like terms: x + -2x = -1x -7 + -1x = 13 + 2x + -2x Combine like terms: 2x + -2x = 0 -7 + -1x = 13 + 0 -7 + -1x = 13 Add '7' to each side of the equation. -7 + 7 + -1x = 13 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 13 + 7 -1x = 13 + 7 Combine like terms: 13 + 7 = 20 -1x = 20 Divide each side by '-1'. x = -20 Simplifying x = -20
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