2.The value of ‘b’ , if x=1 , y= 1 is a solution of 9bx + 11by = 20 is
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Step-by-step explanation:
Given
x=1 and y=1
9bx +11by=20
b=?
9b(1)+11b(1)=20
9b +11b=20
20b=20
b=1
Hence simple
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