Question

7 phần 5 trừ a phần tư bằng 13 phần 20

Answer 1

7/5 - a/4 = 13/20

a/4 = 7/5 - 13/20

a/4 = 3/4

=> a = 3 

Vậy a = 3

Answer 2

ai trả lời nhanh m sẽ k

Answer 3

a/4=7/5-13/20=3/4

=> a=3

Answer 4

\(\frac{7}{5}-\frac{a}{4}=\frac{13}{20}\)

\(\frac{a}{4}=\frac{7}{5}-\frac{13}{20}\)

\(\frac{a}{4}=\frac{28}{20}-\frac{13}{20}\)

\(\frac{a}{4}=\frac{15}{20}\)

\(\frac{a}{4}=\frac{3}{4}\)

\(\Rightarrow a=3\)

Vậy a=3

Answer 5

\(\frac{7}{5}\)-\(\frac{a}{4}\)=\(\frac{13}{20}\)

--->\(\frac{28}{20}\)-\(\frac{5a}{20}\)=\(\frac{13}{20}\)

--->\(\frac{28-5a}{20}\)=\(\frac{13}{20}\)

--->28-5a = 13

---> 5a = 28-13

---> 5a = 15

---> a =15:5 =3

Answer 6

\(\frac{7}{5}-a=\frac{13}{20}\)

\(\Rightarrow a=\frac{7}{5}-\frac{13}{20}\)

Answer 7

\(\frac{7}{5}-a=\frac{13}{20}\)

\(\Rightarrow a=\frac{7}{5}-\frac{13}{20}\)

\(\Rightarrow x=\frac{3}{4}\)

Answer 8

\(\frac{7}{5}\)- \(\frac{a}{4}\)= \(\frac{13}{20}\)

           \(\frac{a}{4}\)   =\(\frac{7}{5}\)  - \(\frac{13}{20}\)

           \(\frac{a}{4}\)   = \(\frac{3}{4}\)

           => a=3