I need help to simply the following. Please help!?
s/2s-6 - 3s/4s-12
s/2s-6 - 3s/4s-12
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You need to have a common denominator to subtract the fractions. To get that you must multiply the first fraction by 2/2. This turns the fraction into 2s/4s-12 (same denominator as the other fraction. Now you just subtract, and there you go.