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Simplifying -3x + -2 * 5x + -7 = -12 Multiply -2 * 5 -3x + -10x + -7 = -12 Reorder the terms: -7 + -3x + -10x = -12 Combine like terms: -3x + -10x = -13x -7 + -13x = -12 Solving -7 + -13x = -12 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -13x = -12 + 7 Combine like terms: -7 + 7 = 0 0 + -13x = -12 + 7 -13x = -12 + 7 Combine like terms: -12 + 7 = -5 -13x = -5 Divide each side by '-13'. x = 0.3846153846 Simplifying x = 0.3846153846
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