Frequent Questions about our Solver

The problem

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Don't understand the 3rd step

Answer provided by our tutors

We need to add the fractions on the left hand side. Since 12 is the least common denominator (LCD) for 3 and 4 we have:

This is why we have:

Next we multiply both side by '12' and then move the numbers to the right hand side while the variable stays on the left hand side:

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