Answer :
Given: 
To find: the value of a and b
Explanation: Now given the ordered pairs are equal, so corresponding elements will be equal, i.e.,
and a-2b = 6 + b
Now 
⇒a = 0
Substituting the value of a in the equation (a-2b = 6 + b), we get
0-2b = 6 + b
⇒ -2b-b = 6
⇒ -3b = 6
⇒ b = -2
Hence the value of a and b are 0 and -2 respectively
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