\(\left(25-x\right).2=18.1\)
\(\left(25-x\right).2=18\)
\(\left(25-x\right)=18:2\)
\(25-x=9\)
\(x=25-9\)
\(x=16\)
vậy x = 16
nha
\(\frac{25-x}{18}=\frac{1}{2}\)
\(=>\left(25-x\right).2=18\)
\(=>50-2x=18\)
\(\Rightarrow-2x=50-18\)
\(\Rightarrow-2x=32\)
\(\Rightarrow x=-16\)
vay \(x=-16\)
\(pt\Leftrightarrow\frac{25-x}{18}=\frac{9}{18}\)
\(\Leftrightarrow25-x=9\Leftrightarrow x=25-9=16\)
vậy \(x=16\)
25-x:18=0.5
25-x=0.5.18
25-x=9
x=25-9
x=16
dấu"."là nhân nhé
chúc bn hok giỏi
Ta có :
\(\frac{25-x}{18}=\frac{1}{2}\)
\(\Rightarrow2\left(25-x\right)=18\)
\(\Rightarrow50-2x=18\)
\(\Rightarrow2x=50-18\)
\(\Rightarrow2x=32\)
\(\Rightarrow x=32:2=16\)
ta thấy mẫu số là 18 nên 1/2 = 9/18
25 - x = 9
x = 25 - 9
x = 16
x là 16 , k mk nha
