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Simplifying 7 + x + -4 + 3x = 23 Reorder the terms: 7 + -4 + x + 3x = 23 Combine like terms: 7 + -4 = 3 3 + x + 3x = 23 Combine like terms: x + 3x = 4x 3 + 4x = 23 Solving 3 + 4x = 23 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 4x = 23 + -3 Combine like terms: 3 + -3 = 0 0 + 4x = 23 + -3 4x = 23 + -3 Combine like terms: 23 + -3 = 20 4x = 20 Divide each side by '4'. x = 5 Simplifying x = 5
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