Solve the inequality 2x−34≤5−x5\frac{2x-3}{4} \le \frac{5-x}{5}. Answer ...

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Worked solution

7

1. Clear the fractions without changing the inequality direction

2x−34⩽5−x5\frac{2x-3}{4} \leqslant \frac{5-x}{5}
Multiply both sides by 2020:
5(2x−3)⩽4(5−x)5(2x-3) \leqslant 4(5-x)

2. Expand and isolate $x$

10x−15⩽20−4x10x-15 \leqslant 20-4x
14x⩽3514x \leqslant 35
x⩽3514=52x \leqslant \frac{35}{14}=\frac{5}{2}

Answer

x⩽3514x \leqslant \dfrac{35}{14}, or x⩽52x \leqslant \dfrac{5}{2}

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