Question

25%.x+x=5/2

Answer 1

\(25\%x+x=\dfrac{5}{2}\)

\(\Rightarrow\dfrac{1}{4}x+x=\dfrac{5}{2}\)

\(\Rightarrow\left(\dfrac{1}{4}+1\right)x=\dfrac{5}{2}\)

\(\Rightarrow\dfrac{5}{4}x=\dfrac{5}{2}\)

\(\Rightarrow x=\dfrac{5}{2}:\dfrac{5}{4}=2\)

Answer 2

\(25\%x+x=\dfrac{5}{2}\)

\(\dfrac{1}{4}x+x=\dfrac{5}{2}\)

\(x\left(\dfrac{1}{4}+1\right)=\dfrac{5}{2}\)

\(x\dfrac{5}{4}=\dfrac{5}{2}\)

\(x=\dfrac{5}{2}:\dfrac{5}{4}\)

\(x=2\)

Answer 3

25% x +x =\(\dfrac{5}{2}\)

\(\dfrac{1}{4}\)x+x=\(\dfrac{5}{2}\)

(\(\dfrac{1}{4}\)+1)x = \(\dfrac{5}{2}\)

\(\dfrac{5}{4}\)x=\(\dfrac{5}{2}\)

x = \(\dfrac{5}{2}\):\(\dfrac{5}{4}\) =2

( chúc bn học tốt)

Answer 4

ta có:

25%.x+x=\(\dfrac{5}{2}\)

1/4.x+x=5/2

1/4.x+x.1=5/2

x.(1/4+1)=5/2

x.5/4=5/2

x=5/2:5/4=2

cố gắng nha