solve ax + by =a-b and bx -ay=a+b by cross multiplication method
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not copied from anywhere I do like this
please mark as brainliest
see my and i am working mathematics
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ax+by=(a-b)__(1)
bx-ay=(a+b)__(2)
Let eqn(1)×a+eqn(2)×b
= (ax+by)a+(bx-ay)b=(a-b)a+(a+b)b
=a²x+aby+b²x-aby=a²-ab+ab+b²
=a²x+b²x=a²+b²
=x= 1
putting the value in eqn (1) we get
=a×1+by=a-b
= y=-1
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