How does one come to the answer 0.12 from (0.045 + x * 0.504) / (0.003 + x * 0.0105) = 25. What rules are involved to solve this equation? EDIT: thanks for pointing it out. :D

How does one come to the answer 0.12 from (0.045 + x * 0.504) / (0.003 + x * 0.0105) = 25. What rules are involved to solve this equation? EDIT: thanks for pointing it out. :D

need help

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Pretty straight forward, but i am having trouble. You help would be much appreciated

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