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Simplifying 2x + -7(x + -1) = -3 + -1r Reorder the terms: 2x + -7(-1 + x) = -3 + -1r 2x + (-1 * -7 + x * -7) = -3 + -1r 2x + (7 + -7x) = -3 + -1r Reorder the terms: 7 + 2x + -7x = -3 + -1r Combine like terms: 2x + -7x = -5x 7 + -5x = -3 + -1r Solving 7 + -5x = -3 + -1r 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 + -5x = -3 + -7 + -1r Combine like terms: 7 + -7 = 0 0 + -5x = -3 + -7 + -1r -5x = -3 + -7 + -1r Combine like terms: -3 + -7 = -10 -5x = -10 + -1r Divide each side by '-5'. x = 2 + 0.2r Simplifying x = 2 + 0.2r
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