Question

Please help me solve 26 and 27

Answer 1

no 28

solution

(AB)=100

ABC+CBD=100

4x+2+3x-7=100

7x-5=100

7x=100+5

x=105/7

x=15

(CBD) =3x-7

3(15)-7

45-7

38

Explanation:

by using above information