Question

afla nr necunoscut : 42:7xb=54, c:5=6x2, d:8=66:6​

Answer 1

Răspuns:

Explicație pas cu pas:

42:7xb=54

6 x b = 54

b = 54 : 6 = 9

______

c:5=6x2

c : 5 = 12

c = 5 x 12 = 60

__________

d:8=66:6

d : 8 = 11

d = 8 x 11 = 88

Answer 2

42:7×b=54

6×b=54

b=54:6

b=9

c:5=6×2

c:5=12

c=12×5

c=60

d:8=66:6

d:8=11

d=11×8

d=88