nhanh lên nhé, mình đang vội !
x . 34, 5 + x . 66, 5 - x = 1000
x( 34, 5 + 66, 5 - 1 ) = 1000
x . 100 = 1000
x = 1000 : 100
x = 10
X x 34,5 + X x 66,5 - X = 1000
X x (34,5+66,5-1)=1000
X x 100=1000
X=1000 \(\div\)100
X=10
x*34,5+x*66,5-x=1000
x*(34,5+66,5-1)=1000
x*100=1000
x=1000/100
x=10
x . 34,5 + x . 66,5 - x = 1000
x . ( 34,5 + 66,5 - 1 ) = 100
x . 100 = 1000
x = 1000 : 100
x = 10
Vậy x = 10
\(x.34,5+x.66,5-x=1000\)
\(x.\left(34,5+66,5-1\right)=1000\)
\(x.100=1000\)
\(x=1000:100\)
\(x=10\)
Vậy x = 10
Chúc bạn học tốt !
X.(34,5+66,5-1)=1000
X.100=1000
X=1000/100
X=10
X.34,5+X.66,5-x=1000
X.(34,5+66,5-1)=1000
X.100=1000 => X=1000:100 => X=10.
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)qqqwwwq
X x 34,5 + X x 66,5 - X = 1000
X x 34,5 + X x 66,5 - X x 1 = 1000
X x (34,5 + 66,5 - 1) = 1000
X x 100 = 1000
X = 1000 : 100
X = 10