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Simplifying 90 = 5 + -2x + 1 Reorder the terms: 90 = 5 + 1 + -2x Combine like terms: 5 + 1 = 6 90 = 6 + -2x Solving 90 = 6 + -2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2x' to each side of the equation. 90 + 2x = 6 + -2x + 2x Combine like terms: -2x + 2x = 0 90 + 2x = 6 + 0 90 + 2x = 6 Add '-90' to each side of the equation. 90 + -90 + 2x = 6 + -90 Combine like terms: 90 + -90 = 0 0 + 2x = 6 + -90 2x = 6 + -90 Combine like terms: 6 + -90 = -84 2x = -84 Divide each side by '2'. x = -42 Simplifying x = -42
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