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A  2x+ 7 y


B ax-by=k


C 5+20=5^2


D 4x+7=22

 Mar 1, 2019
edited by raziel305  Mar 1, 2019

A literal equation is one where we have several variables and we are trying to solve for one of them.....thus it's an "abstract" equation.....we are not trying to find a " numerical" answer


A is not an equation

C is an identity

D is a linear equation where we can find a numerical value for x 


B is the literal equation......we can solve for any variable [ either x or y ] in an abstract manner  



cool cool cool

 Mar 1, 2019

thanks math god

raziel305  Mar 1, 2019

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