Question

(\(\dfrac{3+x}{2}\)- 24,6)x3=7,5

Answer 1

\(\Leftrightarrow\dfrac{x+3}{2}-24,6=22,5\)

\(\Leftrightarrow\left(x+3\right)\cdot\dfrac{1}{2}=22,5+24,6=47,1\)

=>x+3=94,2

hay x=91,2

Answer 2

x=91,2 

Answer 3

\(\left(\dfrac{3+x}{2}-24,6\right)\times3=7,5\)

\(\left(\dfrac{3+x}{2}-24,6\right)=7,5:3\)

\(\left(\dfrac{3+x}{2}-24,6\right)=2,5\)

\(\dfrac{3+x}{2}=2,5+24,6\)

\(\dfrac{3+x}{2}=27,1\)

\(\left(3+x\right):2=27,1\)

\(3+x=27,1\times2\)

\(3+x=54,2\)

\(x=54,2-3\)

\(x=51,2\)

Answer 4

`([3+x]/2-24,6)xx3=7,5`

`[3+x]/2-24,6=7,5:3=2,5`

`[3+x]/2=2,5+24,6=27,1`

`3+x=27,1xx2=54,2`

`x=54,2-3=51,2`