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Simplifying -7 + 7(x + -7) = -91 Reorder the terms: -7 + 7(-7 + x) = -91 -7 + (-7 * 7 + x * 7) = -91 -7 + (-49 + 7x) = -91 Combine like terms: -7 + -49 = -56 -56 + 7x = -91 Solving -56 + 7x = -91 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '56' to each side of the equation. -56 + 56 + 7x = -91 + 56 Combine like terms: -56 + 56 = 0 0 + 7x = -91 + 56 7x = -91 + 56 Combine like terms: -91 + 56 = -35 7x = -35 Divide each side by '7'. x = -5 Simplifying x = -5
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