Question

Tìm x:15(x-1)-12=33

Answer 1

\(15\left(x-1\right)-12=33\)

\(15\left(x-1\right)=33+12\)

\(15\left(x-1\right)=45\)

\(x-1=45:15\)

\(x-1=3\)

\(x=3+1\)

\(x=4\)

Answer 2

`15(x-1)-12=33`

`=> 15(x-1)=33+12`

`=> 15(x-1)=45`

`=>x-1=45:15`

`=>x-1=3`

`=> x=3+1`

`=> x=4`

Vậy `x=4`