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Simplifying 9x + 9 = 3 + -1(4x + -7) Reorder the terms: 9 + 9x = 3 + -1(4x + -7) Reorder the terms: 9 + 9x = 3 + -1(-7 + 4x) 9 + 9x = 3 + (-7 * -1 + 4x * -1) 9 + 9x = 3 + (7 + -4x) Combine like terms: 3 + 7 = 10 9 + 9x = 10 + -4x Solving 9 + 9x = 10 + -4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4x' to each side of the equation. 9 + 9x + 4x = 10 + -4x + 4x Combine like terms: 9x + 4x = 13x 9 + 13x = 10 + -4x + 4x Combine like terms: -4x + 4x = 0 9 + 13x = 10 + 0 9 + 13x = 10 Add '-9' to each side of the equation. 9 + -9 + 13x = 10 + -9 Combine like terms: 9 + -9 = 0 0 + 13x = 10 + -9 13x = 10 + -9 Combine like terms: 10 + -9 = 1 13x = 1 Divide each side by '13'. x = 0.07692307692 Simplifying x = 0.07692307692
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