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Simplifying X + 2 = 42 + -7X Reorder the terms: 2 + X = 42 + -7X Solving 2 + X = 42 + -7X Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '7X' to each side of the equation. 2 + X + 7X = 42 + -7X + 7X Combine like terms: X + 7X = 8X 2 + 8X = 42 + -7X + 7X Combine like terms: -7X + 7X = 0 2 + 8X = 42 + 0 2 + 8X = 42 Add '-2' to each side of the equation. 2 + -2 + 8X = 42 + -2 Combine like terms: 2 + -2 = 0 0 + 8X = 42 + -2 8X = 42 + -2 Combine like terms: 42 + -2 = 40 8X = 40 Divide each side by '8'. X = 5 Simplifying X = 5
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