Question

-7 - x = 5
x -8 = -9

Answer 1

`-7-x=5`

`x=-7-5`

`x=-12`

Vậy `x=-12`

____________

`x-8=-9`

`x=-9+8`

`x=-1`

Vậy `x=-1`

Answer 2

\(a,x=-7-5\\ x=-12\\ b,x=-9+8\\ x=-1\)

Answer 3

a: =>x+7=-5

hay x=-12

b: =>x=-9+8=-1

Answer 4

`-7 - x = 5`

`=>x=-7-5`

`=>x= -12`

`------------`

`x -8 = -9`

`=>x=-9+8`

`=>x= -1`

Answer 5

`-7 - x =5`

`=>  x  = -7 - 5`

`=>  x   = -12`

________________________

`x - 8 = -9`

`=> x = -9 + 8`

`=> x = -1`

Answer 6

-7 - x = 5

x = (-7) - 5

x = -12

vậy x = -12

x - 8 = -9

x = (-9) + 8

x = -1

vậy x = -1

Answer 7

1, -7-x=5

x=5+(-7)

x=-2

  Vậy x=-2

2, x-8=-9

x=-9+8

x=-1

   Vậy x=-1