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Simplifying 30 + -2x = -75 + -9x Solving 30 + -2x = -75 + -9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9x' to each side of the equation. 30 + -2x + 9x = -75 + -9x + 9x Combine like terms: -2x + 9x = 7x 30 + 7x = -75 + -9x + 9x Combine like terms: -9x + 9x = 0 30 + 7x = -75 + 0 30 + 7x = -75 Add '-30' to each side of the equation. 30 + -30 + 7x = -75 + -30 Combine like terms: 30 + -30 = 0 0 + 7x = -75 + -30 7x = -75 + -30 Combine like terms: -75 + -30 = -105 7x = -105 Divide each side by '7'. x = -15 Simplifying x = -15
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