Question

Expand & simplify

2
(
b
+
4
)
+
5
(
b
−
3
)

Answer 1

7b - 7

Explanation:

You can use distributive property which is x (a + b) = x*a + x*b and x (a - b) = x*a - x*b. Therefore, the expression is 2*b + 2*4 + 5*b - 5*3 which is:

2b + 8 + 5b - 15, which is, if you combine like terms:

7b - 7