Question

Tìm x

( 7x - 15 ) : 3 = 2

Answer 1

( 7x - 15 ) : 3 = 2

(7x - 15 ) = 2 .3

7x - 15 = 6

7x = 6 + 15

7x = 21

x = 21 : 7

x = 3

Answer 2

(7x-15) : 3 = 2

7x-15 = 6

7x = 21

x = 3

Vậy x = 3

Answer 3

\(\left(7x-15\right):3=2\)

\(\left(7x-15\right)=2.3\)

\(\left(7x-15\right)=6\)

\(7x=6+15\)

\(7x=21\)

\(x=21:7\)

\(x=3\)

Answer 4

Tìm x

(7x -15):3=2

(7x-15) =2.3

(7x-15) =6

7x =6+15

7x =21

x =21:7

x =3

Answer 5

\(\left(7x-15\right):3=2\)

\(7x-15=2.3\)

\(7x-15=6\)

\(7x=6+15\)

\(7x=21\)

Vậy \(x\)\(=\)21:7

\(x=\)3

Answer 6

( 7x - 15 ) : 3 = 2

( 7x - 15 ) = 2.3

7x - 15 = 6

7x = 6 + 15

7x = 21

x = 21 : 7

x = 3