Math CentralQuandaries & Queries


Question from Eugene, a parent:

X over 2, -3 =0 ?

Hi Eugene,

The equation says that if you first divide x by two, and then subtract 3, you will end up with a final answer of 0. To figure out what x is, we can work backwards: First add 3 to the final answer (in this case 0), and then multiply by 2. What do you get?

We can show these operations using formal algebra as follows:



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