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Simplifying 2 + -7x = 4(3 + -3x) 2 + -7x = (3 * 4 + -3x * 4) 2 + -7x = (12 + -12x) Solving 2 + -7x = 12 + -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. 2 + -7x + 12x = 12 + -12x + 12x Combine like terms: -7x + 12x = 5x 2 + 5x = 12 + -12x + 12x Combine like terms: -12x + 12x = 0 2 + 5x = 12 + 0 2 + 5x = 12 Add '-2' to each side of the equation. 2 + -2 + 5x = 12 + -2 Combine like terms: 2 + -2 = 0 0 + 5x = 12 + -2 5x = 12 + -2 Combine like terms: 12 + -2 = 10 5x = 10 Divide each side by '5'. x = 2 Simplifying x = 2
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