X+y=102x-2y=2Solve the equation by cross multiplication method

1.	X+y=102x-2y=2Solve the equation by cross multiplication method
Answer» x+y=10=>x+y-10=0..2x-2y=2=>x-y-1=0..From cross multiplication,x÷(1×(-1)-(-1)(-10)=y÷(-10×1-(-1)(1)=1÷(1(-1)-1(1).=>x÷(-11)=y÷(-9)=1÷(-2)A/q. -x/11=-1/2=>x/11=1/2=>x=11/2.and -y/9=-1/2=>y=9/2

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