Question

(x + 7 ) - 13 =21

Answer 1

\(\text{( x + 7 ) - 13 = 21}\)

\(\text{( x + 7 ) = 21 + 13}\)

\(\text{( x + 7 ) = 34}\)

\(\text{x = 34 - 7}\)

\(\text{x = 27}\)

\(\text{Vậy x = 27}\)

Answer 2

(x+7) -13 =21

x+7 = 21+13

x+7 =34

x =34-7

x = 27

Answer 3

x + 7 = 21 + 13

x + 7 = 34

x = 34 - 7

x = 27

tk nha mk trả lời đầu tiên đó!

Answer 4

x+7=21-13

x+7=8

x=8-7

x=1

 nha ^-^

Answer 5

(x+7)-13=21

x+7      =21+13

x+7      = 34

x         = 34-7

x         = 27.

Vậy x= 27

Answer 6

Ta có : 

( x + 7 ) - 13 = 21 

=) x + 7 = 34 

=) x = 34 - 7 

=) x = 27

Vậy \(x=27\)

Answer 7

\(\left(x+7\right)-13=21\)

\(x+7=21+13\)

\(x+7=34\)

\(x=34-7\)

\(x=27\)

Vậy x = 27