How do you solve 5( x + 4) = 40?

3 Answers
Oct 14, 2016

x=4

Explanation:

5(x+4)=40

Open the brackets.

5x+20=40

Subtract 20 from each side.

5x=20

Divide both sides by 5.

x=4

x=4

Explanation:

Expand:
5x+20=40

Simplify:
5x = 40-20

5x=20

Divide:
x=20/5

x=4

Aug 5, 2018

x=4

Explanation:

We can divide both sides by 5 to get

x+4=8

Next, to completely isolate the x term, we can subtract 4 from both sides to get

x=4

There is another way of going about this, however. We could have just distributed the 5 on the left to get

5x+20=40

We would subtract 20 from both sides and divide both sides by 5, and we would still get x=4.

Hope this helps!