\(\frac{3}{8}x+\frac{11}{4}=-0,25\)

\(\frac{3}{8}x+\frac{11}{4}=\frac{-1}{4}\)

\(\frac{3}{8}x=\frac{-1}{4}-\frac{11}{4}\)

\(\frac{3}{8}x=-3\)

\(x=\left(-3\right):\frac{3}{8}\)

\(x=-8\)

~ Hok tốt ~

\(\frac{3}{8}x+\frac{11}{4}=-0,25\)

\(\Rightarrow\frac{3}{8}x+\frac{11}{4}=\frac{-1}{4}\)

\(\Rightarrow\frac{3}{8}x=\frac{-12}{4}\)

\(\Rightarrow\frac{3}{8}x=\frac{-24}{8}\)

\(\Rightarrow3x=-24\)

\(\Rightarrow x=-8\)

d, 32%-0,25:x=-3/2/5

0,32-0,25:x=-3,4

-0,25:x=-3,4-0,32

-0,25:x=-3,72

x=-0,25:-3,72

x=25/372

7/8+4/1/2:x=-13/40

0,875+4,5:x=-0,325

4,5:x=-0,325-0,875

4,5:x=-1,2

x=4,5:-1,2

x=-3,75

\(0,25x-\dfrac{27}{8}x=\dfrac{3}{4}\)

\(\Rightarrow\left(0,25-\dfrac{27}{8}\right)x=\dfrac{3}{4}\)

\(\Rightarrow\dfrac{-25}{8}x=\dfrac{3}{4}\Rightarrow x=-\dfrac{6}{25}\)

Chúc bạn học tốt!!!

\(0,25.x-\dfrac{27}{8}.x=\dfrac{3}{4}\)

\(\dfrac{2}{8}.x-\dfrac{27}{8}.x=\dfrac{3}{4}\)

\(x\left(\dfrac{2}{8}-\dfrac{27}{8}\right)=\dfrac{3}{4}\)

\(x.\dfrac{-25}{8}=\dfrac{3}{4}\Leftrightarrow x=\dfrac{3}{4}:\dfrac{-25}{8}=\dfrac{-6}{25}\)

\(\dfrac{1}{5}.\left(\dfrac{-7}{3}+\dfrac{2}{8}\right):0,25\)

\(=\dfrac{1}{5}.\left(\dfrac{-56}{24}+\dfrac{6}{24}\right):\dfrac{1}{4}\)

\(=\dfrac{1}{5}.\dfrac{-25}{12}:\dfrac{1}{4}\)

\(=\dfrac{-5}{12}:\dfrac{1}{4}\)

\(=\dfrac{-5}{3}\)

a) \(\dfrac{9}{8}+\dfrac{3}{8}:x=0,25\\ < =>\dfrac{9}{8}+\dfrac{3}{8}:x=\dfrac{1}{4}\\ =>\dfrac{3}{8}:x=\dfrac{1}{4}-\dfrac{9}{8}=-\dfrac{7}{8}\\ =>x=\dfrac{\dfrac{3}{8}}{-\dfrac{7}{8}}=-\dfrac{3}{7}\)

b) \(\left(\dfrac{2x}{5}-1\right):\left(-5\right)=\dfrac{1}{7}\\ =>\dfrac{2x}{5}-1=\dfrac{1}{7}.\left(-5\right)=-\dfrac{5}{7}\\ =>\dfrac{2x}{5}=-\dfrac{5}{7}+1=\dfrac{2}{7}\\ =>2x=\dfrac{2}{7}.5=\dfrac{10}{7}\\ =>x=\dfrac{\dfrac{10}{7}}{2}=\dfrac{5}{7}\)

\(\dfrac{9}{8}+\dfrac{3}{8}:x=0,25\)

\(\Rightarrow\dfrac{9}{8}+\dfrac{3}{8}:x=\dfrac{1}{4}\)

\(\Rightarrow\dfrac{3}{8}:x=\dfrac{1}{4}-\dfrac{9}{8}\)

\(\Rightarrow\dfrac{3}{8}:x=\dfrac{-7}{8}\)

\(\Rightarrow x=\dfrac{3}{8}:\dfrac{-7}{8}\)

\(\Rightarrow x=\dfrac{-3}{7}\)

P = 0,25 : (10,1 - 9,6) - 3/8

    = 0,25 : 0,5 - 3/8

   = 0,5 - 3/8

    = 1/5

Vậy P = 1/5

= 0,125 tk m nhé

\(-2\frac{3}{8}+0,25-40\%\cdot\frac{5}{24}\)

\(=-2\frac{3}{8}+0,25-\frac{1}{2}\)

\(=-2\frac{3}{8}+\frac{1}{4}-\frac{1}{12}\)

\(=-\frac{17}{8}-\frac{1}{12}\)

\(=-\frac{53}{24}=-2\frac{5}{24}\)

k mình nhé bạn

Chú ý : 1 và 4/3 = 1 + 4/3 = 7/3 

( 5/12 + 1+4/3 - 0 ,25 ) : 5/8 - 75% 

= ( 5/12 + 7/3 - 1/4 ) . 8/5 - 3/4

= ( 5/12 + 28/12 - 3/12 ) . 8/5 - 3/4

=      30/12 . 8/5 - 3/4

=           4 - 3/4 

= 16/4 - 3/4 

=  13/4 

=(5/12+7/3-1/4):5/8-3/4

=(5/12+28/12-1/4):5/8-3/4

=(33/12-1/4):5/8-3/4

=(33/12-3/12):5/8-3/4

=30/12:5/8-3/4

=5/2:5/8-3/4

=5/2x8/5-3/4

=4-3/4

=4/1-3/4

=16/4-3/4

=13/4

Đặt \(A=\left(\frac{5}{12}+1\frac{4}{3}-0,25\right):\frac{5}{8}+0,75\)

       \(A=\left(\frac{5}{12}+\frac{7}{3}-\frac{1}{4}\right):\frac{5}{8}+0,75\)

        \(A=\left(\frac{5}{12}+\frac{28}{12}-\frac{3}{12}\right):\frac{5}{8}+\frac{15}{32}:\frac{5}{8}\)

         \(A=\frac{5}{2}:\frac{5}{8}+\frac{15}{32}:\frac{5}{8}\)

        \(A=\left(\frac{5}{2}+\frac{15}{32}\right):\frac{5}{8}\)

        \(A=\frac{19}{4}\)

CÓ PHẢI = 63/20 ĐÚNG KO 

NẾU ĐÚNG THÌ K HOẶC KB NHÉ! ! !

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