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How do you simplify the expression #6(times) 7 - 3(4 + 1) #?

Answer 1

Nathan Axel

Use the PEMDAS method.

PEMDAS stands for:

Parentheses Exponents Multiplication Division Addition Subtraction

Let's go through each:

Parentheses

We have one, #(4+1)#, which equals #5#. This gives us #6*7-3*5#.

Exponents

None.

Multiplication

We have two, 67 and 35. #6*7=42# and #3*5=15#. This gives us 42-15.

From here, all we need to do is subtract 15 from 42, which gives us #27#.

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Answer 2

Avery Alexander

The simplified expression is 39.

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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.