How do you simplify 7x2yz+3yzx2zx2y4y?

1 Answer
Aug 18, 2016

Combine like terms.

Explanation:

Two terms in an expression or equation are like terms if they share the same common variables. In your expression, for example, the like terms are 7x2yz, 3yzx2 and zx2y. Even though there is a difference in the order the variables are listed, the two terms have the same variables, so they are like terms.

Let's solve this by making another expression:

7x2yz+3x2yz=4x2yzx2yz=5x2yz

Let's now plug our answer back into our expression to get our answer:

5x2yz4y