Question

b)\(\dfrac{3}{4}\): x = \(-\dfrac{5}{8}\)

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

Answer 1

b/\(\dfrac{3}{4}:x=-\dfrac{5}{8}\)
\(x=\dfrac{3}{4}:\left(-\dfrac{5}{8}\right)\)
\(x=-\dfrac{6}{5}\)
c/\(\dfrac{6}{-x}=\dfrac{3}{4}\)
\(-3x=6\cdot4\)
\(x=-\dfrac{6\cdot4}{3}\)
\(x=-8\)
#DatNe

Answer 2

\(b)\dfrac{3}{4}:x=-\dfrac{5}{8}\\ x=\dfrac{3}{4}:-\dfrac{5}{8}\\ x=-\dfrac{6}{5}\\ c)\dfrac{6}{-x}=\dfrac{3}{4}\\ -x=\dfrac{6\times4}{3}\\ -x=8\\x=-8.\)

Answer 3

`b)`

\(\dfrac{3}{4}:x=-\dfrac{5}{8}\\ x=\dfrac{3}{4}:\left(-\dfrac{5}{8}\right)\\ x=\dfrac{3}{4}\times\dfrac{-8}{5}\\ x=-\dfrac{6}{5}\\ c,\\ \dfrac{6}{-x}=\dfrac{3}{4}\\ -3x=24\\ x=-8\)

Answer 4

`b)3/4:x=-5/8`

`=>x=3/4:(-5/8)`

`=>x=3/4 .(-8/5)`

`=>x=-24/20`

`=>x=-6/5`

Vậy `x=-6/5`

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`c)6/(-x)=3/4`

`=>(-6)/x=3/4`

`=>(-6)/x=(3.(-2))/(4.(-2))`

`=>(-6)/x=(-6)/(-8)`

`=>x=-8`

Vậy `x=-8`