Question

LEVEL 3
A+9=15
1+B=7
C+8=16
3+D=10

Answer 1

im not sure if this is correct but my guess would be:

a=6

b=6

c=7

Explanation:

a+9=15

a=15-9

a=6

___________________________

1+b=7

b=7-1

b=6

_____________________________

3+d=10

d=10-3

d=7