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How do you simplify the expression #3x - 7 + 2(4 - x)#?

Answer 1

Isaiah Anthony

#x+1#

#3x−7+2(4−x)# #3x-7+8-2x# #x+1#

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Answer 2

Jace Anderson

To simplify the expression 3x - 7 + 2(4 - x), you first need to distribute the 2 to both terms inside the parentheses:

3x - 7 + 2(4) - 2(x)

Now, simplify further:

3x - 7 + 8 - 2x

Combine like terms:

3x - 2x - 7 + 8

x + 1

So, the simplified expression is x + 1.

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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.

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