Question

Các bạn giải ra hết cho mình nha mình cảm ơn

a) 1/5x - 1/3 = 2/4 ( x+2)

b) 5/4 ( x-3 ) = 4+3/2x

c) 5/4 ( x-3 ) = 3/2 ( x+4 )

Answer 1

a)\(\frac{1}{5}x-\frac{1}{3}=\frac{2}{4}\left(x+2\right)\)

<=>\(\frac{1}{5}x-\frac{1}{3}=\frac{2}{4}x+1\)

<=>\(-\frac{3}{10}x=\frac{4}{3}\)

<=>\(x=-\frac{40}{9}\)

b)\(\frac{5}{4}\left(x-3\right)=4+\frac{3}{2}x\)

<=>\(\frac{5}{4}x-\frac{15}{4}=4+\frac{3}{2}x\)

<=>\(-\frac{1}{4}x=\frac{31}{4}\)

<=>\(x=-31\)

c)\(\frac{5}{4}\left(x-3\right)=\frac{3}{2}\left(x+4\right)\)

<=>\(\frac{5}{4}x-\frac{15}{4}=\frac{3}{2}x+6\)

<=>\(-\frac{1}{4}x=\frac{9}{4}\)

<=>x=-9