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Simplifying (-3x + -7) + (4x + 7) = 0 Reorder the terms: (-7 + -3x) + (4x + 7) = 0 Remove parenthesis around (-7 + -3x) -7 + -3x + (4x + 7) = 0 Reorder the terms: -7 + -3x + (7 + 4x) = 0 Remove parenthesis around (7 + 4x) -7 + -3x + 7 + 4x = 0 Reorder the terms: -7 + 7 + -3x + 4x = 0 Combine like terms: -7 + 7 = 0 0 + -3x + 4x = 0 -3x + 4x = 0 Combine like terms: -3x + 4x = 1x 1x = 0 Solving 1x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '1'. x = 0 Simplifying x = 0
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