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Simplifying 6x + -12 = 3(x + -7) Reorder the terms: -12 + 6x = 3(x + -7) Reorder the terms: -12 + 6x = 3(-7 + x) -12 + 6x = (-7 * 3 + x * 3) -12 + 6x = (-21 + 3x) Solving -12 + 6x = -21 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -12 + 6x + -3x = -21 + 3x + -3x Combine like terms: 6x + -3x = 3x -12 + 3x = -21 + 3x + -3x Combine like terms: 3x + -3x = 0 -12 + 3x = -21 + 0 -12 + 3x = -21 Add '12' to each side of the equation. -12 + 12 + 3x = -21 + 12 Combine like terms: -12 + 12 = 0 0 + 3x = -21 + 12 3x = -21 + 12 Combine like terms: -21 + 12 = -9 3x = -9 Divide each side by '3'. x = -3 Simplifying x = -3
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