Question

ab+5a+3b+15=24 and a+3 then b+5=?

Answer 1

Answer:

here , a+3=6

then a=6-3

therefore a=3

now ,

ab+5a+3b+15=24

substituting a=3

(3*b)+(5*3)+3b=24-15

3b+15+3b= 9

3b+3b= 9-15

6b = -6

b=-6/6

= -1

therefore answer is -1