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Simplifying 5x + 4 = x + 9 Reorder the terms: 4 + 5x = x + 9 Reorder the terms: 4 + 5x = 9 + x Solving 4 + 5x = 9 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 4 + 5x + -1x = 9 + x + -1x Combine like terms: 5x + -1x = 4x 4 + 4x = 9 + x + -1x Combine like terms: x + -1x = 0 4 + 4x = 9 + 0 4 + 4x = 9 Add '-4' to each side of the equation. 4 + -4 + 4x = 9 + -4 Combine like terms: 4 + -4 = 0 0 + 4x = 9 + -4 4x = 9 + -4 Combine like terms: 9 + -4 = 5 4x = 5 Divide each side by '4'. x = 1.25 Simplifying x = 1.25
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