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Simplifying 42 + 7x + 13 = 7 Reorder the terms: 42 + 13 + 7x = 7 Combine like terms: 42 + 13 = 55 55 + 7x = 7 Solving 55 + 7x = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-55' to each side of the equation. 55 + -55 + 7x = 7 + -55 Combine like terms: 55 + -55 = 0 0 + 7x = 7 + -55 7x = 7 + -55 Combine like terms: 7 + -55 = -48 7x = -48 Divide each side by '7'. x = -6.857142857 Simplifying x = -6.857142857
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