pls. help me in the solution

Dear student,3x-5y=11;(5a+b)x-(7a-b)y=4(3a-2b)+1If it has many solution then it will have infinite solution.35a+b=-5-(7a-b)=1112a-8b+13(7a-b)=5(5a+b)21a-3b=25a+5b4a+8b=0a+2b=0a=-2b....(1)35a+b=1112a-8b+13(12a-8b+1)=11(5a+b)36a-24b+3=55a+11b19a+35b=3-38b+35b=3-3b=3b=(-1)a=(-2)×(-1)=2Regards

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