How do write in simplest form given #42.3+(-27.9)#?

Answer 1

Adding a negative number to a positive number is the same as subtracting the value. Therefore, the answer should be 14.4

#42.3+(-27.9)# is our starting equation. Since all of the terms inside the parenthesis are negative:

#+(-27.9)# is the same thing as saying #-27.9#

Then we can re-form the equation as:

#42.3-27.9 = 14.4#

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Answer 2

Noah Archer

To write the expression 42.3 + (-27.9) in simplest form, you add the numbers together: 42.3 + (-27.9) = 14.4.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.