\(x.\left(12+13\right)=2000\)
\(x.25=2000\)
\(x=2000:25\)
\(x=80\)
Vậy X =80
Chúc Bạn Hok Tốt l
12 x X + 13 x X = 2000
X x ( 13 + 12 ) = 2000
X x 25 = 2000
X = 80
\(12\times x+13\times x=2000\)
\(\left(12+13\right)\times x=2000\)
\(25\times x=2000\)
\(x=2000:25=400\)
Vậy: \(x=400\)
\(12\times x+13\times x=2000\)
\(\left(12+13\right)\times x=2000\)
\(25\times x=2000\)
\(x=2000:25\)
\(x=80\)
Học tốt
12.x+13.x = 2000
x.(12+13) = 2000
x. 25 = 2000
x = 2000 : 25
x = 80
12 . X + 13 . X = 2000
X . [ 12 + 13 } = 2000
X . 25 = 2000
X = 2000 : 25
X = 80
Bài làm :
Ta có :
\(12\times X+13\times X=2000\)
\(\Leftrightarrow25\times X=2000\)
\(\Leftrightarrow X=2000\div25=80\)
Vậy X=80