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Simplifying 2x + 30 = x + 90 Reorder the terms: 30 + 2x = x + 90 Reorder the terms: 30 + 2x = 90 + x Solving 30 + 2x = 90 + 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. 30 + 2x + -1x = 90 + x + -1x Combine like terms: 2x + -1x = 1x 30 + 1x = 90 + x + -1x Combine like terms: x + -1x = 0 30 + 1x = 90 + 0 30 + 1x = 90 Add '-30' to each side of the equation. 30 + -30 + 1x = 90 + -30 Combine like terms: 30 + -30 = 0 0 + 1x = 90 + -30 1x = 90 + -30 Combine like terms: 90 + -30 = 60 1x = 60 Divide each side by '1'. x = 60 Simplifying x = 60
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