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Simplifying 128 + -3x = 42x + 18 Reorder the terms: 128 + -3x = 18 + 42x Solving 128 + -3x = 18 + 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. 128 + -3x + -42x = 18 + 42x + -42x Combine like terms: -3x + -42x = -45x 128 + -45x = 18 + 42x + -42x Combine like terms: 42x + -42x = 0 128 + -45x = 18 + 0 128 + -45x = 18 Add '-128' to each side of the equation. 128 + -128 + -45x = 18 + -128 Combine like terms: 128 + -128 = 0 0 + -45x = 18 + -128 -45x = 18 + -128 Combine like terms: 18 + -128 = -110 -45x = -110 Divide each side by '-45'. x = 2.444444444 Simplifying x = 2.444444444
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