Question

What is 3( 2x + 5 ) = 39 ?

Answer 1

Hello there!

3(2x + 5) = 39

First, we need to apply the Distributive Property to the left side of the equation.
The Distributive Property allows us to multiply any number or variable outside of the parenthesis by all numbers/variables inside of the parenthesis.

For example;

2(1 + 3)
2(1) + 2(3)
2 + 6
8.

Let's apply this to our current equation.

3(2x + 5)
3(2x) + 3(5)
6x + 15

We now currently have:
6x + 15 = 39

Our goal is to isolate the variable. To do that, we must subtract 15 from both sides.

15 -15 = 0
39 - 15 = 24

We now have:
6x = 24

From here, it's pretty simple. All we need to do is divide both sides by the coefficient. In this case, the coefficient is 6.

6x / 6 = x
24 / 6 = 4

We are now left with:

x + 4

I hope this helps!
-Ekansh Nimbalkar

Answer 2

3 (2x+5) = 39
6x + 15 = 39
6x = 39-15
6x = 24
x = 24 ÷ 6
x = 4




Hope it helps u☺☺