Question

What is the value of the expression when a=3 and b=5?

8a+6(2b-7)

Answer 1

sub a =3 and b = 5 into the expression above you get:

8*3+6(2*5-7)

then use bedmas accordingly (this is the order of arithmetic operations)

8*3+6(2*5-7)
=24+6(10-7)
=24+6(3)
=24+18
=42