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Simplifying 90 = 40 + (6x + 2) Reorder the terms: 90 = 40 + (2 + 6x) Remove parenthesis around (2 + 6x) 90 = 40 + 2 + 6x Combine like terms: 40 + 2 = 42 90 = 42 + 6x Solving 90 = 42 + 6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6x' to each side of the equation. 90 + -6x = 42 + 6x + -6x Combine like terms: 6x + -6x = 0 90 + -6x = 42 + 0 90 + -6x = 42 Add '-90' to each side of the equation. 90 + -90 + -6x = 42 + -90 Combine like terms: 90 + -90 = 0 0 + -6x = 42 + -90 -6x = 42 + -90 Combine like terms: 42 + -90 = -48 -6x = -48 Divide each side by '-6'. x = 8 Simplifying x = 8
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