Question

I Will Medal! What is the solution to the equation?

5(8 + 7) = 5 • x + 5 • 7

A.
x = 1

B.
x = 5

C.
x = 7

D.
x = 8

Answer 1

\(\sf 5(8 + \color{red}7) = 5 \cdot x + 5 \cdot \color{red}7\)

Answer 2

When distributing, we multiply the number outside the parenthesis to all the numbers inside the parenthesis.

\(\sf \color{lime}5(8 + \color{red}7) = \color{lime}5 \cdot x + \color{lime}5 \cdot \color{red}7\)

Answer 3

So what's 'x' going to be?

Answer 4

\(\sf \color{lime}5(\color{blue}8 + \color{red}7) = \color{lime}5 \cdot \color{blue}x + \color{lime}5 \cdot \color{red}7\)

Answer 5

remember
5(8+7)=5(8)+5(7)
~ ~
(x)