Question

НОМЕР 85 ПЛИЗ ПОгите

Answer 1

1)
5*x=20*2
5x=40
x=40:5
x=8

2)
9*x=18*7
9x=126
x=126:9
x=14

3)
3*x=18*2
3x=36
x=36:3
x=12

4)
3*x=6*7
3x=42
x=42:3
x=14

5)
5*x=15*9
5x=135
x=135:5
x=27

6)
12*x=60*7
12x=420
x=420:12
x=35