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IrinaVladis [17]
3 years ago
13

-1\2x+1y=3/4, y-2x=3 , do I divide all the  fractions by 4 to get rid of the fraction  or by 2?

Mathematics
1 answer:
Law Incorporation [45]3 years ago
4 0
You <em>multiply</em> both sides of the first equation by  4.
Then you have . . .
                            -2x + 4y  =  3     and     y - 2x  = 3 .

If you want to get rid of a fraction, you multiply it by itsdenominator.
BUT ... whatever you do to one term on one side of the equation, you
have to do the same to <em>all</em> the terms on that side, AND then you have to
do the same thing to all the termson the OTHER side.
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2 years ago
Whats the reciprocal to 2 3/8?
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