Answer:
The first one and the last one
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Answer:
pemdas is an order of operation
Step-by-step explanation:
PEMDAS STANDS FOR parentheis, exponents, multiplication, division, addition, and subtraction. it is the order of how you should solve multi step equations EXAMPLE: 1+2x2 FIRST you have to multiply the 2x2 because multiplication comes first in PEMDAS, then you do the addition so 2x2=4+1=5
Answer: whats the answer
Step-by-step explanation:
<h3>
Answer:</h3>

<h3>
Step-by-step explanation:</h3>
In this question, we're simply combining "like-terms" in order to simplify the expression.
Lets solve:

When you're done solving, you should get -17x-21
This means that -17x-21 would be the simplified version.
<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>