\(\dfrac{3}{4}x=\dfrac{4}{3}+\dfrac{5}{2}\\ \dfrac{3}{4}x=\dfrac{4.2+5.3}{6}\\ \dfrac{3}{4}x=\dfrac{23}{6}\\ x=\dfrac{23}{6}:\dfrac{3}{4}\\ x=\dfrac{23}{6}.\dfrac{4}{3}\\ x=\dfrac{46}{9}\)
`3/4`x - `5/2` = `4/3`
`3/4`x = `4/3` + `5/2`
`3/4`x = `23/6`
x = `23/6` : `3/4`
x = `46/9`.
\(\dfrac{3}{4}x-\dfrac{5}{2}=\dfrac{4}{3}\)
\(\dfrac{3}{4}x=\dfrac{4}{3}+\dfrac{5}{2}\)
\(\dfrac{3}{4}x=\dfrac{8}{6}+\dfrac{15}{6}\)
\(\dfrac{3}{4}x=\dfrac{23}{6}\)
\(x=\dfrac{23}{6}:\dfrac{3}{4}\)
\(x=\dfrac{23}{6}.\dfrac{4}{3}\)
\(x=\dfrac{46}{9}\)
biết:
b./ 
c*./ 
b/ 
c/ 
= 
e/ 
= 
và x + y = 22 f/ 
và 
e) 9x =81 
h) 
và x + y= -21 i) 
và 3x - 2y = -2
và 3x – 2y – z = -29