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Simplifying -8 = 20 + 7x Solving -8 = 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. -8 + -7x = 20 + 7x + -7x Combine like terms: 7x + -7x = 0 -8 + -7x = 20 + 0 -8 + -7x = 20 Add '8' to each side of the equation. -8 + 8 + -7x = 20 + 8 Combine like terms: -8 + 8 = 0 0 + -7x = 20 + 8 -7x = 20 + 8 Combine like terms: 20 + 8 = 28 -7x = 28 Divide each side by '-7'. x = -4 Simplifying x = -4
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