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REALLY NEED HELP ON THIS!!!!! add: (-15xz-4xy)+(20xy-xy-9yz-16xz)
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REALLY NEED HELP ON THIS!!!!!

add: (-15xz-4xy)+(20xy-xy-9yz-16xz)

User Vinith
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2 Answers

5 votes
 - 31xz + 16xy - 9yz is your answer
User Philio
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Combine like terms (-15xz-4xy) + ((20xy-xy) - 9yz - 16xz)
Simplify to -15xz-4xy+19xy-9yz-16xz
Collect like terms
(-15xz-16xz) + (-4xy+19xy) -9yz
Your answer is -31xz+15xy-9yz
User Diadyne
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