Question

Combine Like Terms

3. What is the simplest expression equivalent to 12xy + 20x - 9 - 11xy - 3x + 15?
-Xy+17-6
xy+23x+24
23xy+17X+6
xy+17X+6

Answer 1

Answer: Fourth Choice. xy + 17x + 6

Explanation:

Given

12xy + 20x - 9 - 11xy - 3x + 15

Put like terms together

=12xy - 11xy + 20x - 3x + 15 - 9

Combine like terms through addition/subtraction

=xy + 17x + 6

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