When solving 4 (2x+5) = 100, Roberto wrote 8x+20 = 100. Which number property did Roberto use?

Question

Candice

Mathematics

6 April, 14:44

When solving 4 (2x+5) = 100, Roberto wrote 8x+20 = 100. Which number property did Roberto use?

+3

Answers (2)

Know the Answer?

Brisa Esparza · Answer 1

This property is known as the distributive property.

When you have a variable inside or outside a pair of parentheses, you can multiply the number outside the parentheses to each term inside the parentheses, and the answer will still be the same.

Giancarlo Potter · Answer 2

The property that Roberto used is Distribution property.

Step-by-step explanation:

Take what's outside of the parenthesis and multiply it by everything inside of the parenthesis.

4 * 2x = 8x

4 * 5 = 20

So now the equation is: 8x + 20 = 100