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Simplifying 84 = 12 + 7x Solving 84 = 12 + 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. 84 + -7x = 12 + 7x + -7x Combine like terms: 7x + -7x = 0 84 + -7x = 12 + 0 84 + -7x = 12 Add '-84' to each side of the equation. 84 + -84 + -7x = 12 + -84 Combine like terms: 84 + -84 = 0 0 + -7x = 12 + -84 -7x = 12 + -84 Combine like terms: 12 + -84 = -72 -7x = -72 Divide each side by '-7'. x = 10.28571429 Simplifying x = 10.28571429
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