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

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