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

Algebra ->  Expressions-with-variables -> SOLUTION: Add the equations, then solve for the variable. 5e+7f=6 2e-7f=22      Log On


   

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.