SOLUTION: Add the equations, then solve for the variable. 5e+7f=6 2e-7f=22

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Question 565855: Add the equations, then solve for the variable.

5e+7f=6
2e-7f=22
Answer by ad_alta(240) About Me  (Show Source):
You can put this solution on YOUR website!
Adding, we get 7e=28, so e=4. That means f=-2.