Question

tìm x biết

Answer 1

\(x\left(\dfrac{3}{5}+\dfrac{1}{2}\right)=\dfrac{11}{15}\\ x\left(\dfrac{6+5}{10}\right)\\ =\dfrac{11}{15}\\ \dfrac{11}{10}x=\dfrac{11}{15}\\ x=\dfrac{11}{15}:\dfrac{11}{10}\\ x=\dfrac{2}{3}\)

Answer 2

`x xx 3/5 + x xx 1/2 = 11/15`

`=> x xx (3/5 + 1/2) = 11/15`

`=> x xx  11/10 = 11/15`

`=> x                = 11/15 : 11/10`

`=> x                 = 2/3`

Answer 3

=>11/10x=11/15

=>x=11/15:10/15=10/15=2/3

Answer 4

`x xx 3/5 + x xx 1/2 = 11/15`

`=> x xx ( 3/5 + 1/2) = 11/15`

`=> x xx 11/10=11/15`

`=> x= 11/15 : 11/10`

`=> x= 11/15 xx10/11`

`=> x= 2/3`

Answer 5

`x xx 3/5 + x xx 1/2 = 11/15`

`x xx (3/5+1/2)= 11/15`

`x xx (6/10+5/10)=11/15`

`x xx 11/10 = 11/15` 

`x=11/15 : 11/10`

`x=11/15 xx 10/11`

`x=10/15`

`x=2/3`

Vậy `x=2/3`

Answer 6

\(\Rightarrow x\times\left(\dfrac{3}{5}+\dfrac{1}{2}\right)=\dfrac{11}{15}\)
\(\Rightarrow\)\(x\times\dfrac{11}{10}=\dfrac{11}{15}\)
\(\Rightarrow x=\dfrac{11}{15}:\dfrac{10}{15}\)
\(\Rightarrow x=\dfrac{2}{3}\)