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Simplifying -135 + -7x = 49 + -21x Solving -135 + -7x = 49 + -21x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '21x' to each side of the equation. -135 + -7x + 21x = 49 + -21x + 21x Combine like terms: -7x + 21x = 14x -135 + 14x = 49 + -21x + 21x Combine like terms: -21x + 21x = 0 -135 + 14x = 49 + 0 -135 + 14x = 49 Add '135' to each side of the equation. -135 + 135 + 14x = 49 + 135 Combine like terms: -135 + 135 = 0 0 + 14x = 49 + 135 14x = 49 + 135 Combine like terms: 49 + 135 = 184 14x = 184 Divide each side by '14'. x = 13.14285714 Simplifying x = 13.14285714
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