If the system of equations2x + 3y = 72ax + (a + b)y = 28has infinitely – InterviewSolution

1.	If the system of equations2x + 3y = 72ax + (a + b)y = 28has infinitely many solution
Answer» L1=2X + 3Y=7, L2=2ax+ ( a+b)y=28; ratio of cofficent of x= ratio of cofficent of y; 2/2a=3/(a+b)=7/28; 1/a=3/( a+b)=1/4, a=4; 12= a + b; 12-a=b; 12-4=b=8; a=4; b=8

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