38+x=72 X-31=45 X*4=20 6 * y =18 36:c=9

Question

38+x=72 X-31=45 X*4=20 6 * y =18 36:c=9

Answer 1

х=72-38
х=34

х=45+31
х=76

Answer 2

1. X=34
2. X=71
3. X=5
4. Y=3
5. C=4