Question

8,75xX+1,25xX=20

Answer 1

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Dấu chấm (.) là dấu nhân nha!

8,25 . X + 1,25 . X = 20

(8,25 + 1,25) . X = 20

         10         . X = 20

                        X = 20 : 10

                        X =      2

Vậy x = 2

Tham khảo nha!

Answer 2

10xX=20

x=2

Answer 3

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

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

\(x.10=20\)

\(x=20:10=2\)

Answer 4

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

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

\(x\times10=20\)

\(x=20:10\)

\(x=2\)

Answer 5

        8,75.X + 1,25. X = 20

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

\(\Leftrightarrow x\times10=20\)

\(\Leftrightarrow x=20:10\)

\(\Leftrightarrow x=2\)

Vậy x=2

Answer 6

= 2 nha bn

Answer 7

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

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

X x 10 = 20 

X = 20 : 10

X = 2

Đúng 100000% lun

Answer 8

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

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

\(10\times x=20\)

\(x=20\div10\)

\(x=2\)