Question

Solve the following systems of linear equations by substitution method
(I) 2x-y=5
3x+y=15
(ll) 2x+3y=12
3x+2y=18
(lll) 2x+y=35
3x+4y=65

2.(i) ax-by=a^2+b^2
x+y=2a
(ii) b/ax+a/by=a^2+b^2
x+y=2ab​

Answer 1

Step-by-step explanation:

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