x=7/11-6/33

x=7/11-2/11

x=5/11

x + 6/33 = 7/11

x = 7/11 - 6/33

x = 5/11

\(x+\frac{6}{33}=\frac{7}{11}\)

\(x=\frac{7}{11}-\frac{6}{33}\)

\(x=\frac{15}{33}=\frac{5}{11}\)

y/33=9/11-7

y/33=-68/11

y/33=-204/33

y=-204

y/33=9/11-7=-68/11

y= -68/11x 33=-2244/11= -204

\(7+\frac{y}{33}=\frac{9}{11}\)

\(\frac{y}{33}=\frac{9}{11}-7\)

\(\frac{y}{33}=\frac{-68}{11}\)

=>\(y=\frac{-68x33}{11}=-204\)

wow! mù mắt. Ido tính toán có khác!

C2:(32+1)x32:2=528

bạn tính thử xem đúng đấy.

wowwowwow

\(6+\frac{x}{33}=\frac{7}{11}\)

\(\Rightarrow\frac{x}{33}=\frac{7}{11}-6\)

\(\Rightarrow\frac{x}{33}=\frac{-59}{11}\)

\(\Rightarrow x=\frac{33.\left(-59\right)}{11}\)

\(\Rightarrow x=-177\)

Vậy x = -177

_Chúc bạn học tốt_

6 + \(\frac{x}{33}\) = \(\frac{7}{11}\)

       \(\frac{x}{33}\)= \(\frac{7}{11}\)- 6

       \(\frac{x}{33}\)= \(-\frac{59}{11}\)

       \(\frac{x}{33}\)= \(-\frac{177}{33}\)

        \(x\)    = \(-177\)

9/5 + 4/7 + 6/5 + 3/7

=  ( 9/5 + 6/5 ) + ( 4/7 + 3/7)

=            3        + 1

=        4

9/5 + 4/7 + 6/5 + 3/7 = (9/5 + 6/5) + (4/7 + 3/7)

= 15/5 + 7/7

= 3 + 1

= 4

1/2 x 45/33 x 1/9 x 11/6 = (1/2 x 1/9) x (45/33 x 11/6)

= 1/18 x 45/18

= 5/2

1/2 x 45/33 x 1/9 x 11/6

= (1/2 x 1/9) x (45/33 x 11/6)

= 1/18 x 45/18

= 5/2