Slove the following system of linear equations 4x+7y=20 and 21x-13y=12
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calculate x and y in proper fraction
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4x+7y=20
21x-13y=12
multiply first eq with 21 and second with 4
make all the signs that are downward opposite.
x will become equal so cut x
the find the value of y
21x-13y=12
multiply first eq with 21 and second with 4
make all the signs that are downward opposite.
x will become equal so cut x
the find the value of y
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