Question
Fri October 14, 2011 By:

You said that in linear equations in 2 variables, a and b are not equal to 0. So, how can anyone write 5x=7, as 5x+0y=7

Expert Reply
Fri October 14, 2011
Yes. We can always write 5x = 7 as 5x + 0y = 7.
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