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Simplifying 9 + -4x = -7 + -2x Solving 9 + -4x = -7 + -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. 9 + -4x + 2x = -7 + -2x + 2x Combine like terms: -4x + 2x = -2x 9 + -2x = -7 + -2x + 2x Combine like terms: -2x + 2x = 0 9 + -2x = -7 + 0 9 + -2x = -7 Add '-9' to each side of the equation. 9 + -9 + -2x = -7 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = -7 + -9 -2x = -7 + -9 Combine like terms: -7 + -9 = -16 -2x = -16 Divide each side by '-2'. x = 8 Simplifying x = 8
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