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2015-11-03T21:14:06+05:30

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The value of the expression is 0 we get by substitution of the value of a and b in 2a+b+1--->2(0)+(-1)+1--->0-1+1-->0
0
2015-11-03T21:14:45+05:30

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2a + b + 1
= 2 (0 ) - 1 + 1
= 0 - 1 + 1
= 0
 therefore the answer is 0...
   i hope that this will help u...................^_^
2 5 2