Question

9/12 nhân x +1/4 nhân x = 3/4

 

Answer 1

\(\left(\dfrac{9}{12}+\dfrac{1}{4}\right)x=\dfrac{3}{4}\\ \dfrac{9+3}{12}x=\dfrac{3}{4}\\ 1.x=\dfrac{3}{4}\\ x=\dfrac{3}{4}\)

Answer 2

\(\dfrac{9}{12}x+\dfrac{1}{4}x=\dfrac{3}{4}\)

\(\Rightarrow x\left(\dfrac{3}{4}+\dfrac{1}{4}\right)=\dfrac{3}{4}\)

\(\Rightarrow x=\dfrac{3}{4}\)

Answer 3

3/4