Question

Tìm X 

42 * 3 - x = 78 

34 * 4 + x = 215

x * 6 = 18 + 3 

x / 4 = 8 * 6

Answer 1

a)42.3-x=78

126-x=78

x=48

b)34.4+x=215

136+x=215

x=79

c)x.6=21

x=3,5

d)x:4=48

x=192

Answer 2

42x3-x=78

126-x=78

      x=126-78

      x=48

nhớ chọn cho mình

Answer 3

a) 42 * 3 - x = 78

     126 - x = 78

        x = 126 - 78

         x = 48

b) 34 * 4 + x = 215

       136 + x = 215

               x = 215 - 136

               x = 79

c) x * 6 = 18 + 3

    x * 6 = 21

      x = 21 : 6

        x = 3,5

d) x/4 = 8 * 6

    x/4 = 48

     x = 48 * 4

     x = 192

Answer 4

X=X=48X=48X=48X=48X=48

X=79

X=3,5

X=12

Dung k ban