Question

Answer 1

a: x=4/5*6=24/5

b: =>-19/48x=-2/3-1/8=-16/24-3/24=-19/24

=>x=1/2

c: =>2,4-x=2,4

=>x=0

Answer 2

a, \(\dfrac{x}{6}=\dfrac{4}{5}\)

\(x=6\cdot4:5\)

`x=24:5`

`x=4,8`

 

b, \(-\dfrac{19}{48}x+\dfrac{1}{8}=-\dfrac{2}{3}\)

\(-\dfrac{19}{48}x=-\dfrac{2}{3}-\dfrac{1}{8}\)

\(-\dfrac{19}{48}x=-\dfrac{19}{24}\)

\(x=-\dfrac{19}{24}:\left(-\dfrac{19}{48}\right)\)

\(x=2\)

 

c, `7,2:(2,4-x)=3`

`2,4-x=7,2:3`

`2,4-x=2,4`

`x=2,4-2,4`

`x=0`