The problem is to solve for $x$ in the following equation: $\frac{4x-3}{5} + \frac{5x+9}{4} = \frac{2x}{3} + \frac{15}{2} - \frac{7x}{6}$.

AlgebraLinear EquationsSolving EquationsFractionsSimplification
2025/4/11

1. Problem Description

The problem is to solve for xx in the following equation:
4x35+5x+94=2x3+1527x6\frac{4x-3}{5} + \frac{5x+9}{4} = \frac{2x}{3} + \frac{15}{2} - \frac{7x}{6}.

2. Solution Steps

First, multiply both sides of the equation by the least common multiple of the denominators, which is LCM(5,4,3,2,6)=60LCM(5, 4, 3, 2, 6) = 60:
60(4x35+5x+94)=60(2x3+1527x6)60 \left( \frac{4x-3}{5} + \frac{5x+9}{4} \right) = 60 \left( \frac{2x}{3} + \frac{15}{2} - \frac{7x}{6} \right)
12(4x3)+15(5x+9)=20(2x)+30(15)10(7x)12(4x-3) + 15(5x+9) = 20(2x) + 30(15) - 10(7x)
48x36+75x+135=40x+45070x48x - 36 + 75x + 135 = 40x + 450 - 70x
Combine like terms on each side of the equation:
(48x+75x)+(36+135)=(40x70x)+450(48x + 75x) + (-36 + 135) = (40x - 70x) + 450
123x+99=30x+450123x + 99 = -30x + 450
Add 30x30x to both sides:
123x+30x+99=30x+30x+450123x + 30x + 99 = -30x + 30x + 450
153x+99=450153x + 99 = 450
Subtract 9999 from both sides:
153x+9999=45099153x + 99 - 99 = 450 - 99
153x=351153x = 351
Divide both sides by 153153:
x=351153x = \frac{351}{153}
Simplify the fraction by dividing both numerator and denominator by their greatest common divisor, which is 99:
x=351÷9153÷9=3917x = \frac{351 \div 9}{153 \div 9} = \frac{39}{17}

3. Final Answer

x=3917x = \frac{39}{17}

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