How do you solve 3(x2)+9=12?

1 Answer
Nov 16, 2016

Use the distributive property.

Explanation:

3(x2)+9=12

Multiple 'x' and -2 by 3.

3x6+9=12

Combine like terms.

3x+3=12

Get x on one side by subtracting 3 from each side.

3x3=153

Divide 3x and -15 by 3.

Then you get your answer.

x=5