Question

\(\left(10x-5\right)\cdot25=250\)

^_^^_^^_^

Answer 1

\(\left(10x-5\right).25=250\)

\(\Leftrightarrow10x-5=250:25\)

\(\Leftrightarrow10x-5=10\)

\(\Leftrightarrow10x=15\)

\(\Leftrightarrow x=\frac{15}{10}=\frac{3}{2}\)

(Nhớ k cho mình với nhé!)

Answer 2

\(\left(10x-5\right)\cdot25=250\)

\(\Rightarrow\left(10x-5\right)=250:25\)

\(\Rightarrow\left(10x-5\right)=10\)

\(\Rightarrow10x=10+5\)

\(\Rightarrow10x=15\)

\(\Rightarrow x=15:10\)

\(\Rightarrow x=\frac{15}{10}\)

\(\Rightarrow x=\frac{3}{2}\)

Answer 3

\(\Rightarrow\left(10x-5\right)=250:25\)

\(\Rightarrow\left(10x-5\right)=10\)

\(\Rightarrow10x=10+5\)

=> \(10x=15\)

=> x = 1.5

=> x = 15 : 10 

Answer 4

lỗi kỉ thuật tí