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whats x+3y=5 and -3x-3y=-15

Algebra
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whats x+3y=5 and -3x -3y=-15

Apr 16th, 2015

x+3y=5              -----1

-3x -3y=-15       -----2

taking -3 common from 2, we get x+y=5    -------3

subtracting 1 and 3

x+3y-x-y=5-5

2y=0

y=0

put value of y in 1

x+3*0=5

x=5

Apr 16th, 2015

Thanks.

Apr 16th, 2015

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