Hey guys!
I must have not seen here any explanation from the equity.
Look closer, if 2k and 4k are similar with the coefficient 2, i.e. 2*2k, it means that all equation might be similar multiplied by 2. So we understand that y must be doubled and 3 points less (because there is a sum on the right): 17*2-3 = 31. Easier, quicker and logical.
What do you think?
I must have not seen here any explanation from the equity.
Look closer, if 2k and 4k are similar with the coefficient 2, i.e. 2*2k, it means that all equation might be similar multiplied by 2. So we understand that y must be doubled and 3 points less (because there is a sum on the right): 17*2-3 = 31. Easier, quicker and logical.
What do you think?
Statistics : Posted by ArtemNYC • on 01 Oct 2012, 05:07 • Replies 18 • Views 31425
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