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Write the variables, constants and terms of the following expressions.
 
S.NoExpressionsVariablesTermsConstants
(i)18 + x - y, , x,
(ii)7p - 4q + 5, , ,
(iii)29x + 13y, ,
(iv)b + 2, 2
 
(Note: Enter the variables in ascending order. Under terms column, enter the values in the order of the given expressions.)