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Simplifying 43 = -20 + 7x Solving 43 = -20 + 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. 43 + -7x = -20 + 7x + -7x Combine like terms: 7x + -7x = 0 43 + -7x = -20 + 0 43 + -7x = -20 Add '-43' to each side of the equation. 43 + -43 + -7x = -20 + -43 Combine like terms: 43 + -43 = 0 0 + -7x = -20 + -43 -7x = -20 + -43 Combine like terms: -20 + -43 = -63 -7x = -63 Divide each side by '-7'. x = 9 Simplifying x = 9
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