Question

What is the value of 5a plus 2(a plus b) when a equal 4 and b equal 2

Answer 1

$\text{Solve by plugging values into equation:}\\\\5a+2(a+b)\\\\5(4)+2(4+2)\\\\20+2(4+2)\\\\20+2(6)\\\\20+12\\\\\boxed{32}$

Answer 2

Step-by-step explanation:

$5a + 2(a + b) \\ = 5a + 2a + 2b \\ = 7a + 2b \\ = 7 \times 4 + 2 \times 2 \\ = 28 + 4 \\ = 32$