Solve each of the following systems of equations by the method of cross-multiplication: mx -my = m^2+n^2 ; x+y = 2m

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asked Feb 3, 2018 in Mathematics by sforrest072 (157,439 points) 60 409 934

Solve each of the following systems of equations by the method of cross-multiplication:

mx -my = m2+n

x+y = 2m

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answered Feb 3, 2018 by mdsamim (213,225 points) 5 10 15
selected Feb 3, 2018 by sforrest072
 
Best answer

The given system of equations may be written as

By cross multiplication, we have

Hence, x=m+n,y=m-n  is the solution of the given system of equation.

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