Question

`1/4x+3/8(x−2)=−11/4`

Answer 1

`1/4x+3/8(x-2)=-11/4`

`1/4x+3/8x-3/4=-11/4`

`1/4x+3/8x=-11/4+3/4`

`(1/4+3/8)x=-8/4`

`5/8x=-2`

`x=-2:5/8`

`x=-16/5`

Answer 2

`3/4x + 3/8(x - 2) = -11/4`

`=> 3/4x + 3/8x - 3/8x . 2 = -11/4`

`=> 3/4x + 3/8x - 3/4 = -11/4`

`=>3/4x + 3/8x         = -11/4 + 3/4`

`=> 3/4x + 3/8x        = -8/4`

`=> (3/4 + 3/8).x      = -2`

`=> 5/8x               = -2

`=>      x                = -2 : 5/8`

`=>     x                 = -2 xx 8/5`

`=>     x                 = -16/5`

Vậy `x = -16/5`

Answer 3

\(\dfrac{1}{4}x+\dfrac{3}{8}\left(x-2\right)=-\dfrac{11}{4}\)

\(\dfrac{1}{4}x+\dfrac{3}{8}x-\dfrac{3}{4}=-\dfrac{11}{4}\)

\(\dfrac{1}{4}x+\dfrac{3}{8}x=-\dfrac{11}{4}+\dfrac{3}{4}\)

\(\dfrac{1}{4}x+\dfrac{3}{8}x=-\dfrac{8}{4}=-2\)

\(\left(\dfrac{1}{4}+\dfrac{3}{8}\right)x=-2\)

\(\dfrac{5}{8}x=-2\)

\(x=-2:\dfrac{5}{8}\)

\(x=-2\times\dfrac{8}{5}\)

\(x=-\dfrac{16}{5}\)