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Simplifying 7x + 20 = x + -20 Reorder the terms: 20 + 7x = x + -20 Reorder the terms: 20 + 7x = -20 + x Solving 20 + 7x = -20 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 20 + 7x + -1x = -20 + x + -1x Combine like terms: 7x + -1x = 6x 20 + 6x = -20 + x + -1x Combine like terms: x + -1x = 0 20 + 6x = -20 + 0 20 + 6x = -20 Add '-20' to each side of the equation. 20 + -20 + 6x = -20 + -20 Combine like terms: 20 + -20 = 0 0 + 6x = -20 + -20 6x = -20 + -20 Combine like terms: -20 + -20 = -40 6x = -40 Divide each side by '6'. x = -6.666666667 Simplifying x = -6.666666667
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