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1 vote
What is helpful to do when you have to use more than one unknown

User Robotbugs
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2 Answers

4 votes

Answer:

We can solve the equation of two unknown variables for one variable in terms of second variable.

Explanation:

This answer only works if you are on edge.

4 votes

Answer:

I think that the answer is to substitute

Explanation:


User Salvationishere
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