x * 4/3 - x *1/3 = 2/9

x * (4/3-1/3) = 2/9

x * 1 = 2/9

x = 2/9

\(x\cdot\frac{4}{3}-x\cdot\frac{1}{3}=\frac{2}{9}\)

         \(x\cdot\frac{4-1}{3}=\frac{2}{9}\)

                   \(x\cdot1=\frac{2}{9}\)

                        \(x=\frac{2}{9}:1\)

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

x . 4/3 - x . 1/3 = 2/9

     x . (4/3 - 1/3) = 2/9

                 x . 1   = 2/9

                       x  = 2/9 : 1= 2/9

Chúc bạn học tốt!

\(\frac{7}{4}-x.\frac{3}{4}=\frac{5}{19}\)

\(\Rightarrow1+\frac{3}{4}-x.\frac{3}{4}=\frac{5}{9}\)

\(\Rightarrow\frac{3}{4}.\left(1-x\right)=\frac{5}{9}-1=-\frac{4}{9}\)

\(\Rightarrow1-x=-\frac{4}{9}:\frac{3}{4}=-\frac{16}{27}\)

\(\Rightarrow x=1-\left(-\frac{16}{27}\right)=1+\frac{16}{27}=1\frac{16}{27}\)

thank you

không có j nha bạn

bn viết tke bố tôi cx ko hiểu đc

\(\frac{4}{5}\). X -X-\(\frac{3}{2}\). X+\(\frac{4}{3}\)

X.(\(\frac{4}{5}\)-1+\(\frac{4}{3}\))-3/2

X.17/15-3/2=-7/10

X.17/15     =4/5

X               =12/17

k nhé

\(\left(1-\frac{1}{2}\right)\left(1-\frac{1}{3}\right)\left(1-\frac{1}{4}\right)\left(1-\frac{1}{5}\right)\left(1-\frac{1}{6}\right)\)

\(=\left(\frac{2-1}{2}\right)\left(\frac{3-1}{3}\right)\left(\frac{4-1}{4}\right)\left(\frac{5-1}{5}\right)\left(\frac{6-1}{6}\right)\)

\(=\frac{1}{2}.\frac{2}{3}.\frac{3}{4}.\frac{4}{5}.\frac{5}{6}\)

\(=\frac{1}{6}\)

 bạn nào biết giải tớ với nha

bạn nào giải cho tớ bài này cho rõ ràng nha

a) 5 : 3/4 - 4 4/5 : 3/4

= 5 . 4/3 - 24/5 . 4/3

= (5 - 24/5) . 4/3

= 1/5 × 4/3

= 4/15

b) -3/5 . 2/7 + (-3/7) . 3/5 + (-3/7)

= (-3/7) . (2/5 + 3/5 + 1)

= (-3/7) . 2

= -6/7

c) [(-4 2/7) . 7/11 + 7/11 . (5 1/3)] . 5 - 5 2/3

= (-30/7 . 7/11 + 7/11 . 16/3) . 5 - 17/3

= (-30/11 + 112/33) . 5 - 17/3

= 2/3 . 5 - 17/3

= 10/3 - 17/3

= -7/3

d) 5/39 . [(7 4/5) . (1 2/3) + (8 1/3) . (7 4/5)]

= 5/39 . (39/5 . 5/3 + 25/3 . 39/5)

= 5/39 . 39/5 . (5/3 + 25/3)

= 1 . 10

= 10

=