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Help! Can anyone please look over the questions that i did and see if they are correct. They are most likely wrong but please help with the other ones.
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Help!

Can anyone please look over the questions that i did and see if they are correct. They are most likely wrong but please help with the other ones.

Help! Can anyone please look over the questions that i did and see if they are correct-example-1
User Harald Gliebe
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Answer:

all answers are shown using addition/subtraction elimination or substitution

Help! Can anyone please look over the questions that i did and see if they are correct-example-1
Help! Can anyone please look over the questions that i did and see if they are correct-example-2
User Nak
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