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Simplifying 7x + 30 = 2x + 130 Reorder the terms: 30 + 7x = 2x + 130 Reorder the terms: 30 + 7x = 130 + 2x Solving 30 + 7x = 130 + 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. 30 + 7x + -2x = 130 + 2x + -2x Combine like terms: 7x + -2x = 5x 30 + 5x = 130 + 2x + -2x Combine like terms: 2x + -2x = 0 30 + 5x = 130 + 0 30 + 5x = 130 Add '-30' to each side of the equation. 30 + -30 + 5x = 130 + -30 Combine like terms: 30 + -30 = 0 0 + 5x = 130 + -30 5x = 130 + -30 Combine like terms: 130 + -30 = 100 5x = 100 Divide each side by '5'. x = 20 Simplifying x = 20
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