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Simplifying 6(x + -7) = 84 Reorder the terms: 6(-7 + x) = 84 (-7 * 6 + x * 6) = 84 (-42 + 6x) = 84 Solving -42 + 6x = 84 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '42' to each side of the equation. -42 + 42 + 6x = 84 + 42 Combine like terms: -42 + 42 = 0 0 + 6x = 84 + 42 6x = 84 + 42 Combine like terms: 84 + 42 = 126 6x = 126 Divide each side by '6'. x = 21 Simplifying x = 21
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