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Simplifying 2x + 7 = 42x + 15 Reorder the terms: 7 + 2x = 42x + 15 Reorder the terms: 7 + 2x = 15 + 42x Solving 7 + 2x = 15 + 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. 7 + 2x + -42x = 15 + 42x + -42x Combine like terms: 2x + -42x = -40x 7 + -40x = 15 + 42x + -42x Combine like terms: 42x + -42x = 0 7 + -40x = 15 + 0 7 + -40x = 15 Add '-7' to each side of the equation. 7 + -7 + -40x = 15 + -7 Combine like terms: 7 + -7 = 0 0 + -40x = 15 + -7 -40x = 15 + -7 Combine like terms: 15 + -7 = 8 -40x = 8 Divide each side by '-40'. x = -0.2 Simplifying x = -0.2
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