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Simplifying -0.4x + 0.7x + 7 = -2 Reorder the terms: 7 + -0.4x + 0.7x = -2 Combine like terms: -0.4x + 0.7x = 0.3x 7 + 0.3x = -2 Solving 7 + 0.3x = -2 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 + 0.3x = -2 + -7 Combine like terms: 7 + -7 = 0 0 + 0.3x = -2 + -7 0.3x = -2 + -7 Combine like terms: -2 + -7 = -9 0.3x = -9 Divide each side by '0.3'. x = -30 Simplifying x = -30
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