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Simplifying 67 = 4x + 3(-4x + -7) Reorder the terms: 67 = 4x + 3(-7 + -4x) 67 = 4x + (-7 * 3 + -4x * 3) 67 = 4x + (-21 + -12x) Reorder the terms: 67 = -21 + 4x + -12x Combine like terms: 4x + -12x = -8x 67 = -21 + -8x Solving 67 = -21 + -8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8x' to each side of the equation. 67 + 8x = -21 + -8x + 8x Combine like terms: -8x + 8x = 0 67 + 8x = -21 + 0 67 + 8x = -21 Add '-67' to each side of the equation. 67 + -67 + 8x = -21 + -67 Combine like terms: 67 + -67 = 0 0 + 8x = -21 + -67 8x = -21 + -67 Combine like terms: -21 + -67 = -88 8x = -88 Divide each side by '8'. x = -11 Simplifying x = -11
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