Question

[xua Dinh]

a) x + 1/2 = 3/4

b) 4/5 . x = 4/7

c) 8x= 7,8x + 25

Answer 1

[Hàn Thiên Băng]

\(a.x=\frac{3}{4}-\frac{1}{2}=\frac{1}{4}\)

\(b.x=\frac{4}{7}:\frac{4}{5}=\frac{5}{7}\)

\(c.8x-7,8x=25\)

\(0,2x=25\Rightarrow x=125\)