Question

tìm x biết:

a, \(\frac{1}{3}x-0.5x=0.75\)

Answer 1

       \(\frac{1}{3}x-0,5x=0,75\)

\(\Leftrightarrow-\frac{1}{6}x=0,75\)

\(\Leftrightarrow\)\(x=-\frac{9}{2}\)

Answer 2

1/3x -0.5x = 0.75

(1/3 - 0.5)x = 0.75

-1/6x        =0.75

x              =0.75 : -1/6

x             =-9/2

tk mình nha .thank bạn nhiều:))

Answer 3

x. (1/3 - 0,5) = 0,75

x. (-1/6) = 3/4

x = 3/4 : (-1/6)

x = -9/2

Answer 4

\(x.\left(\frac{1}{3}-0,5\right)=0,75\)

\(x.\left(\frac{1}{3}-\frac{1}{2}\right)=\frac{3}{4}\)

\(x.\left(\frac{2}{6}-\frac{3}{6}\right)=\frac{3}{4}\)

\(x.\frac{-1}{6}=\frac{3}{4}\)

\(x=\frac{3}{4}:\frac{-1}{6}\)

\(x=\frac{-9}{2}=-4\frac{1}{2}\)

Vậy x = \(-4\frac{1}{2}\)