Question

9-25=(7-x)-(25+7)

 

Answer 1

9-25=(7-x)-(25+7)

-16=(7-x)-32

-16+32=(7-x)

16=7-x

x=7-16

x=-9

Answer 2

9-25=(7-x)-(25+7)

-> (7-x)-(25+7) = 9-25

    7-x-25-7 = 9-25

       -x        = 9-25-7+25+7

        -x       = 9

         x       = -9

Answer 3

-16 = ( 7 - x ) - 32

-16 + 32 = 7 - x

16 = 7 - x

x = 7 - 16

x = -9

Vậy x = -9

Answer 4

9-25=(7-x)-(25+7)

-16=(7-x)+32

7-x=(-16)-32

7-x=-48

x = 7 - (-48)

x = 55

k cho minh nha!

Answer 5

9 - 25 = ( 7 - x ) - ( 25 + 7 )

9 - 25 = ( 7 - x ) - 32

[-16] = 7 - x - 32

7 - x = [-16] - 32

7 - x = [-48]

x = 7 - [-48]

x = [-55]