SOLUTION: why is the solver just addition? why isnt there a choice for subtraction

Question 23518: why is the solver just addition? why isnt there a choice for subtraction
Found 3 solutions by MathNerdette, elima, mathtech5:
Answer by MathNerdette(3)   (Show Source): You can put this solution on YOUR website!
I do not know
Answer by elima(1433)   (Show Source): You can put this solution on YOUR website!
You need to post an equation as an example. We are not sure what you are asking.
Answer by mathtech5(4)   (Show Source): You can put this solution on YOUR website!
Instead of putting the subtraction sign, try making the number negative. Subtracting is the same as negative addition.
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