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Simplifying (7 + 2x) = 30 + 7(x + -1) Remove parenthesis around (7 + 2x) 7 + 2x = 30 + 7(x + -1) Reorder the terms: 7 + 2x = 30 + 7(-1 + x) 7 + 2x = 30 + (-1 * 7 + x * 7) 7 + 2x = 30 + (-7 + 7x) Combine like terms: 30 + -7 = 23 7 + 2x = 23 + 7x Solving 7 + 2x = 23 + 7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7x' to each side of the equation. 7 + 2x + -7x = 23 + 7x + -7x Combine like terms: 2x + -7x = -5x 7 + -5x = 23 + 7x + -7x Combine like terms: 7x + -7x = 0 7 + -5x = 23 + 0 7 + -5x = 23 Add '-7' to each side of the equation. 7 + -7 + -5x = 23 + -7 Combine like terms: 7 + -7 = 0 0 + -5x = 23 + -7 -5x = 23 + -7 Combine like terms: 23 + -7 = 16 -5x = 16 Divide each side by '-5'. x = -3.2 Simplifying x = -3.2
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