Question

afla numarul necunoscut: 9 × 4 : a =6 6 × 4 : b =8 c : 5 × 4 = 8 d × 3 :6 = 4 m : (2 × 4) = 14 :2 n : (3 × 3) =6 × 4 (13 + o) : 8 = 7 33 - p × 4 = 13

Answer 1

9 × 4 : a =6
36:a=6
a=36:6
a=6

 6 × 4 : b =8
24:b=8
b=24:8
b=3

 c : 5 × 4 = 8
c=8:4x5
c=2x5
c=10

d × 3 :6 = 4
d=4x6:3
d=24:3
d=8

 m : (2 × 4) = 14 :2
m:8=7
m=7x8
m=56

n : (3 × 3) =6 × 4
n:9=24
n=24x9
n=216

(13 + o) : 8 = 7 33 - p × 4 = 13
733-px4=13
px4=733-13
px4=720
p=720:4
p=180

(13+o): 8=13
13+o=13x8
13+o=104
o=103-13
o=90