L
lehuyenanh123


bài 1 :
a, $\frac{x+3}{-2}-\frac{2x-1}{3}=\frac{x}{5}-\frac{2-x}{4}$
Chú ý gõ latex
a, $\frac{x+3}{-2}-\frac{2x-1}{3}=\frac{x}{5}-\frac{2-x}{4}$
Chú ý gõ latex
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