Question

x-3=16, 12+x=17 , x+20=24, 27-x=20

Answer 1

1. х - 3 = 16

х = 16 + 3

х = 19

2. 12 + х = 17

х = 17 - 12

х = 5

3. х + 20 = 24

х = 24 - 20

х =4

4. 27 - х = 20

- х = 20 - 27

- х = - 7

х = 7