Question

[kiune ( ミ★тєαм ƒαи вιвιмвαρ вắρ‿✶...]

2* (2/5 * x +0,2 * x) - 1,5 = 3/2 : 1/5

giúp mk  với mk cần gấp

Answer 1

[Online]

\(2\times\left(\frac{2}{5}\times x+0,2\times x\right)-1,5=\frac{3}{2}:\frac{1}{5}.\)

\(2\times\left(\frac{2}{5}\times x+\frac{1}{5}\times x\right)-\frac{3}{2}=\frac{15}{2}\)

\(2\times\text{[}x\times\left(\frac{2}{5}+\frac{1}{5}\right)]-\frac{3}{2}=\frac{15}{2}\)

\(2\times\left(x\times\frac{3}{5}\right)-\frac{3}{2}=\frac{15}{2}\)

\(2\times\left(x\times\frac{3}{5}\right)=\frac{15}{2}+\frac{3}{2}\)

\(2\times\left(x\times\frac{3}{5}\right)=9\)

\(x\times\frac{3}{5}=9:2\)

\(x\times\frac{3}{5}=4,5\)

\(x=4,5:\frac{3}{5}\)

\(x=7,5\)

Answer 2

[kiune ( ミ★тєαм ƒαи вιвιмвαρ вắρ‿✶...]

có bn nào trả lời giúp mk đi