solve x/a+y/b=2 and ax-by=a2-b2 by substitution and elimination method

Dear Student,

By Elimination Method:

By Substitution Method:xa+yb=2xa = 2-ybx = 2a-ayb                         ....1ax-by = a2-b2                  ....2Putting value of x in equ.2, we geta2a-ayb-by = a2-b22a2-a2yb-by = a2-b22a2-a2-a2yb-by+b2= 0a2-a2yb-by+b2= 0a2+b2 = a2yb+bya2+b2 = a2y+b2ybba2+b2 = ya2+b2y = bPutting value of y=b in equ.1, we getx= 2a-abbx = a


Regards

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