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Simplifying 3 = 3x + 5(2x + -7) Reorder the terms: 3 = 3x + 5(-7 + 2x) 3 = 3x + (-7 * 5 + 2x * 5) 3 = 3x + (-35 + 10x) Reorder the terms: 3 = -35 + 3x + 10x Combine like terms: 3x + 10x = 13x 3 = -35 + 13x Solving 3 = -35 + 13x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13x' to each side of the equation. 3 + -13x = -35 + 13x + -13x Combine like terms: 13x + -13x = 0 3 + -13x = -35 + 0 3 + -13x = -35 Add '-3' to each side of the equation. 3 + -3 + -13x = -35 + -3 Combine like terms: 3 + -3 = 0 0 + -13x = -35 + -3 -13x = -35 + -3 Combine like terms: -35 + -3 = -38 -13x = -38 Divide each side by '-13'. x = 2.923076923 Simplifying x = 2.923076923
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