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

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

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

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

\(\Rightarrow x=-177\)

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

đề bài là làm gì vậy bạn?

Tính m x n nhé bạn

M~~1/4

M=1/4

a: 1/3h=20p

b: 11/7*3/5=33/35

3/4:5/6+2/5=3/4*6/5+2/5=9/10+4/10=13/10

4/7+1/2*2/3=4/7+1/3=12/21+7/21=19/21

3-7/5=15/5-7/5=8/5

5/9:37=5/9*1/37=5/333

\(\dfrac{9}{5}+\dfrac{5}{7}+\dfrac{7}{5}+\dfrac{3}{7}=\left(\dfrac{9}{5}+\dfrac{7}{5}\right)+\left(\dfrac{5}{7}+\dfrac{3}{7}\right)=\dfrac{16}{5}+\dfrac{8}{7}=\dfrac{112}{35}+\dfrac{40}{35}=\dfrac{152}{35}\)

\(\dfrac{1}{2}\times\dfrac{45}{33}\times\dfrac{1}{9}\times\dfrac{11}{6}=\dfrac{1}{2}\times\dfrac{15}{11}\times\dfrac{1}{9}\times\dfrac{11}{6}=\left(\dfrac{1}{2}\times\dfrac{1}{9}\right)\times\left(\dfrac{15}{11}\times\dfrac{11}{6}\right)=\dfrac{1}{18}\times\dfrac{15}{6}=\dfrac{5}{36}\)

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

\(\Rightarrow\left(6+x\right)\times11=33\times7\)

     \(\left(6+x\right)\times11=231\)

    \(6+x=231\div11=21\)

\(\Rightarrow x=21-6=15\)

Vậy \(x=15\)

x=15 nhe

bằng 15

Bài 6:

\(21,251+6,058+0,749+1,042\)

\(=\left(21,251+0,749\right)+\left(6,058+1,042\right)\)

\(=22+7,1\)

\(=29,1\)

___________________

\(1,53+5,309+12,47+5,691\)

\(=\left(1,53+12,47\right)+\left(5,309+5,691\right)\)

\(=14+11\)

\(=25\)

5:

a: =>x/17=5/17

=>x=5

b; =>6+x=7/11*33=21

=>x=15

c: \(\dfrac{12+x}{43-x}=\dfrac{2}{3}\)

=>3x+36=86-2x

=>5x=50

=>x=10

d: \(\dfrac{x}{5}< \dfrac{3}{7}\)

=>x<3/7*5

=>x<15/7

f: 15/26+x/16=46/52

=>x/16=23/26-15/26=8/26=4/13

=>x=4/13*16=64/13