Question

Equivalent expression of 3(x+7)

Answer 1

The equivalent expression of 3(x+7) is found by using the distributive property to get 3x + 21.

Step-by-step explanation:

To find this, we apply the distributive property of multiplication over addition.

This property tells us that we multiply the number outside the parentheses by each term inside the parentheses.

For example, with 3(x+7), we multiply 3 by x and 3 by 7.

So the process goes as follows:

• 3(x+7)
• = 3 × x + 3 × 7
• = 3x + 21.

The equivalent expression of 3(x+7) is hence 3x + 21.