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Simplifying 9 = -7 + 4x Solving 9 = -7 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. 9 + -4x = -7 + 4x + -4x Combine like terms: 4x + -4x = 0 9 + -4x = -7 + 0 9 + -4x = -7 Add '-9' to each side of the equation. 9 + -9 + -4x = -7 + -9 Combine like terms: 9 + -9 = 0 0 + -4x = -7 + -9 -4x = -7 + -9 Combine like terms: -7 + -9 = -16 -4x = -16 Divide each side by '-4'. x = 4 Simplifying x = 4
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