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tester [92]
3 years ago
13

(-9a? +12a - 10)+(9a? +10) I need help with this test

Mathematics
2 answers:
stiks02 [169]3 years ago
7 0
I think the answer would just be 12a because -9a? And +9a? Would cancel out and the -10 and +10 would cancel out so all that is left is the 12a
Nina [5.8K]3 years ago
7 0

Answer:

12a

Step-by-step explanation:

Because -9a and 9a would get rid of themselves the only "a-value" left is 12a. 10 and -10 also cancel each other out so 12a is all that is left.

If you need more help let me know, have a great day!

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