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Simplifying 7 + -3(x + -5) + 9 = 19 Reorder the terms: 7 + -3(-5 + x) + 9 = 19 7 + (-5 * -3 + x * -3) + 9 = 19 7 + (15 + -3x) + 9 = 19 Reorder the terms: 7 + 15 + 9 + -3x = 19 Combine like terms: 7 + 15 = 22 22 + 9 + -3x = 19 Combine like terms: 22 + 9 = 31 31 + -3x = 19 Solving 31 + -3x = 19 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-31' to each side of the equation. 31 + -31 + -3x = 19 + -31 Combine like terms: 31 + -31 = 0 0 + -3x = 19 + -31 -3x = 19 + -31 Combine like terms: 19 + -31 = -12 -3x = -12 Divide each side by '-3'. x = 4 Simplifying x = 4
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