Answer: Equivalent expressions have the same value for every possible value of
the variables they include. 5*(x-4) and 5*x - 20 are equivalent
expressions because no matter what the value of x, they are equal in
value.
Equivalent equations are ones such that the truth of one implies and
is implied by the truth of the other. (y-2)^2 = 0 and y = 2 are
equivalent equations, even though the expressions y and (y-2)^2 are
not equivalent expressions.
Step-by-step explanation:
