-(60x)
5-65=-60
0x-1x=-1x
1y-1y=0y
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A term is a single part of an expression or of an equation in algebra.
Without algebra tiles?
Algebra is the usage of variables (e.g. x,y) in order to make the solution of an equation have many possible answers.
In algebra, one solution means that there is only one real value x that will satisfy its equation.
I don't really think there is a difference, but maybe the difference is that in pre-algebra you learn and practice the basic foudations, like the different steps to solve an equation, and what is a equation, and stuff like that. Begining algebra is where you practice actually solving the easier types of algebra equations.