Subtract one expression from the other. If they are equivalent, the answer is zero.
Expressions equivalent to (8x) include any expression that can be simplified or factored to result in (8x). Examples include (2(4x)), (16(x/2)), and (4(2x)). Any expression that maintains the same value as (8x) when simplified is also considered equivalent, such as ((8/1)x).
-(x+3) is one possible answer.
8/1 is one of an infinite number of possible answers.
12
Subtract one expression from the other. If they are equivalent, the answer is zero.
.20 is the decimal expression
One possibility is 10*23.2
-(x+3) is one possible answer.
How can we know? You do not list the expressions "below". At a guess, if one of them is 0.8333(recurring) then it is that one.
20
46
8/1 is one of an infinite number of possible answers.
To write one tenth of w in an algebraic expression, you can use the expression (1/10)w or w/10. Both of these expressions represent dividing w by 10, which is equivalent to finding one tenth of w.
12
You can usually make valid transformations in one of the expressions until you get the other expression. A "valid transformation" in this context means one that doesn't change the value of the expression.
It is a bigger expression.