Unless the problem gives specific directions, any algebraically equivalent expression is acceptable. For example, if the answer was (+2)(a +3), then (+3)(x + 2) and (3+ a)(2+z) would also be acceptable.

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A) Enter the expression 3 - 3 +2:

Your input:

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2y+3

B) Enter the expression

Your Input:

C) Enter the expression +3/1:

Your Input:

D) This last one will require you enter an equation: -7=(-3)

Your input