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Simplifying 12x + 42 = 7 + 42x Reorder the terms: 42 + 12x = 7 + 42x Solving 42 + 12x = 7 + 42x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-42x' to each side of the equation. 42 + 12x + -42x = 7 + 42x + -42x Combine like terms: 12x + -42x = -30x 42 + -30x = 7 + 42x + -42x Combine like terms: 42x + -42x = 0 42 + -30x = 7 + 0 42 + -30x = 7 Add '-42' to each side of the equation. 42 + -42 + -30x = 7 + -42 Combine like terms: 42 + -42 = 0 0 + -30x = 7 + -42 -30x = 7 + -42 Combine like terms: 7 + -42 = -35 -30x = -35 Divide each side by '-30'. x = 1.166666667 Simplifying x = 1.166666667
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