Question

Tìm x

Answer 1

\(-3x=\dfrac{6}{5}+\dfrac{3}{4}\\ -3x=\dfrac{6.4+3.5}{20}\\ -3x=\dfrac{24+15}{20}\\ -3x=\dfrac{39}{20}\\ x=\dfrac{39}{20}:\left(-3\right)\\ x=-\dfrac{13}{20}\)

Answer 2

=>-3x=6/5+3/4=24/20+15/20=39/20

=>x=-39/20:3=-13/20

Answer 3

-3x - `3/4` = `6/5`

-3x = `6/5` + `3/4` 

-3x = `39/20`

x = `39/20` : -3

x = `-13/20`. 

Answer 4

-3x - 3/4 = 6/5

-3x         = 6/5 + 3/4

-3x         = 24/20 + 15/20

-3x         = 39/20

   x         = 39/20 : ( -3 )

   x         = 39/20 . -1/3

   x         = -13/20

Answer 5

\(-3x=\dfrac{6}{5}+\dfrac{3}{4}\)

\(-3x=\dfrac{24}{20}+\dfrac{15}{20}\)

\(-3x=\dfrac{39}{20}\)

\(x=\dfrac{39}{20}:\left(-3\right)\)

\(\Rightarrow x=-\dfrac{13}{20}\)