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Simplifying -5x + -3(7x + -7) = -149 Reorder the terms: -5x + -3(-7 + 7x) = -149 -5x + (-7 * -3 + 7x * -3) = -149 -5x + (21 + -21x) = -149 Reorder the terms: 21 + -5x + -21x = -149 Combine like terms: -5x + -21x = -26x 21 + -26x = -149 Solving 21 + -26x = -149 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + -26x = -149 + -21 Combine like terms: 21 + -21 = 0 0 + -26x = -149 + -21 -26x = -149 + -21 Combine like terms: -149 + -21 = -170 -26x = -170 Divide each side by '-26'. x = 6.538461538 Simplifying x = 6.538461538
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