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Simplifying -3 = 3(4x + -7) Reorder the terms: -3 = 3(-7 + 4x) -3 = (-7 * 3 + 4x * 3) -3 = (-21 + 12x) Solving -3 = -21 + 12x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12x' to each side of the equation. -3 + -12x = -21 + 12x + -12x Combine like terms: 12x + -12x = 0 -3 + -12x = -21 + 0 -3 + -12x = -21 Add '3' to each side of the equation. -3 + 3 + -12x = -21 + 3 Combine like terms: -3 + 3 = 0 0 + -12x = -21 + 3 -12x = -21 + 3 Combine like terms: -21 + 3 = -18 -12x = -18 Divide each side by '-12'. x = 1.5 Simplifying x = 1.5
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