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Simplifying 900 + -4x = 300 + 4.5x Solving 900 + -4x = 300 + 4.5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5x' to each side of the equation. 900 + -4x + -4.5x = 300 + 4.5x + -4.5x Combine like terms: -4x + -4.5x = -8.5x 900 + -8.5x = 300 + 4.5x + -4.5x Combine like terms: 4.5x + -4.5x = 0.0 900 + -8.5x = 300 + 0.0 900 + -8.5x = 300 Add '-900' to each side of the equation. 900 + -900 + -8.5x = 300 + -900 Combine like terms: 900 + -900 = 0 0 + -8.5x = 300 + -900 -8.5x = 300 + -900 Combine like terms: 300 + -900 = -600 -8.5x = -600 Divide each side by '-8.5'. x = 70.58823529 Simplifying x = 70.58823529
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