Question

Q.40 Simplify 10-3(b+3)+4(10-b) and
find the value of the expression at
b=3​

Answer 1

= 10-3(b+3)+4(10-b)

= 10-3b-9+40-4b

= -3b-4b+10-9+40

= -7b+41 ..........(1)

put tha value of b is eq ... (1)

= -7(3) +41

= -21 +41

= 20 answer