add , 2x+9xy+7yand 4y-2xy-7x
Answers
Answered by
1
Step-by-step explanation:
2x+9xy+7y
+ -7x-2xy+4y
_____________
-5x+7xy+11y
Answered by
14
Answer:
Answer
Step-by-step explanation:
2x+9xy+7y
+
-7x-2xy+4y
=
-5x+7xy+11y
I hope it is right
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