Question

What is the solution to the equation?
4(3 + 7) = 4 · x + 4 · 7
A. x = 3
B. x = 4
C. x = 7
D. x = 10

@iGreen @Hotchellerae21 @monsterfox1997 @RyanTLopez

Answer 1

First distribute 4 into the parenthesis:

4(3 + 7) = 4 * x + 4 * 7

12 + 28 = 4 * x + 4 * 7

Add:

40 = 4 * x + 4 * 7

Multiply:

40 = 4x + 28

Now subtract 40 - 28, what do you get?

Answer 2

12

Answer 3

Yep, that gives us:

12 = 4x

Now can you divide 12 / 4? @Wolf_Girly2002

Answer 4

3

Answer 5

Yep, so that's your answer!

Answer 6

Welcome to Open Study!

You can give medals by clicking 'Best Response'. @Wolf_Girly2002