Question

.
38 + x = 72
x - 31 = 45​

Answer 1

Ответ:

38+x=72

x=72-38

x=34

_________

x-31=45

x=31+45

x=76

Answer 2

Ответ:

1)х=72-38

х=34

2)х=31+45

х=76