Question

-x+(-12)=-14-15

X=?

Mn tra loi ro rang thanks

Answer 1

 

-x+(-12)=-14-15

=>-x-12=-29

=>-x=-29+12

=>-x=-17

=>x=17

Answer 2

-x - 12 = -29

-x  = -29 + 12

-x = -17

x = 17 

Answer 3

-x+(-12)=-14-15

-x+(-12)=-29

        -x=-29-(-12)

        -x=-17