Question

8.75*x+1.25*x=20

Giải hộ mình nha các bạn 

Answer 1

\(8,75\text{ x }x+1,25\text{ x }x=20\)

\(\left(8,75+1,25\right)\text{ x }x=20\)

\(10\text{ x }x=20\)

\(x=20\text{ : }10\)

\(x=2\)

Answer 2

\(8.75\cdot x+1.25\cdot x=20\)

\(\left(8.75+1.25\right)\cdot x=20\)

\(10\cdot x=20\)

\(x=20:10\)

\(x=2\)

Answer 3

8.75*x+1.25*x=20

=(8.75+1.25)*x=20

=10*x=20

       x=20:10

       x=2 

Answer 4

Ta có :8,75*x+1,25*x=20

          x*(8,75+1,25)=20

          x*10=20

         x=20:10

         x=2 

Vậy x=2

HOK TỐT!

         

Answer 5

\(8,75\times x+1,25\times x=20\)

\(\Rightarrow\left(8,75+1,25\right)\times x=20\)

\(\Rightarrow10\times x=20\)

\(\Rightarrow x=20:10\)

\(\Rightarrow x=2\)

Vậy x = 2

_Chúc bạn học tốt_

Answer 6

8,75*x+1,25*x=20

x*(8,75+1,25)=20

x*10=20

x=20:10

x=2

Answer 7

\(8,75\cdot x+1,25\cdot x=20\)

\(\Leftrightarrow\left(8,75+1.25\right)\cdot x=20\)

\(\Leftrightarrow10\cdot x=20\)

\(\Rightarrow x=\frac{20}{10}=2\)

Vậy x = 2

==,==

Answer 8

8.75*x+1.25*x=20

(=)x(8.75+1.25)=20

(=)10x=20

=)x=2