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Simplifying -3x + 2(-5x + -20) = 157 Reorder the terms: -3x + 2(-20 + -5x) = 157 -3x + (-20 * 2 + -5x * 2) = 157 -3x + (-40 + -10x) = 157 Reorder the terms: -40 + -3x + -10x = 157 Combine like terms: -3x + -10x = -13x -40 + -13x = 157 Solving -40 + -13x = 157 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '40' to each side of the equation. -40 + 40 + -13x = 157 + 40 Combine like terms: -40 + 40 = 0 0 + -13x = 157 + 40 -13x = 157 + 40 Combine like terms: 157 + 40 = 197 -13x = 197 Divide each side by '-13'. x = -15.15384615 Simplifying x = -15.15384615
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