Question

What is equivalent to the following:(a)7-5(3+6g)(b)5-9+6n-2n

Answer 1

Part A

Given the expression:

$7-5\mleft(3+6g\mright)$

First, we open the bracket:

7-5(3+6g) = 7 - 5(3) - 5(6g)

=7 - 15 - 30g

= -8 - 30g

Part B

Given the expression:

$5-9+6n-2n$$\begin{gathered} 5-9+6n-2n=(5-9)+(6n-2n) \\ =-4+4n \\ =4n-4 \end{gathered}$