Question

4-(15-x)=7

tim x

Answer 1

4-(15-x)=7

   15-x  = 4-7

    15-x = -3

         x= 15-(-3)

         x= 18

    Vậy x = 18

Answer 2

4-(15-x)=7

=>15-x=4-7

=>15-x=-3

=>x=15-(-3)

=>x=15+3

=>x=18

Answer 3

4-15+=5

-11+x=7

x=7+11

x=18

Answer 4

4-(15-x)=7

15-x=4-7

15-x=-3

x=15+3

x=18