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Simplifying 7x = 3(x + -4) Reorder the terms: 7x = 3(-4 + x) 7x = (-4 * 3 + x * 3) 7x = (-12 + 3x) Solving 7x = -12 + 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. 7x + -3x = -12 + 3x + -3x Combine like terms: 7x + -3x = 4x 4x = -12 + 3x + -3x Combine like terms: 3x + -3x = 0 4x = -12 + 0 4x = -12 Divide each side by '4'. x = -3 Simplifying x = -3
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