102. DISCUSS: Algebraic Errors Determine whether the given equation is true for all values of the variables. If not, give a counterexample. (Disregard any value that makes a denomi- nator zero.) x + 1 (b) y + 1 5+ a =1 + 5 %3D (a) y 1 a 2a (d) 2 (c) x +y %3D 1+ y 2b 1 +x + x? (f) 1 = -+1+ xr a (e) b %3D

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