Answer:
x=-2
Step-by-step explanation:
Replace n(x) in the first equation to 18. After you get 18=20-x. You subtract 20 from each side to get -x=2. Since there's still a negative sign on the left side, you divide both sides by negative 1. As a result you get x=-2.
i got it correct on edg 2020
oh go on quizlet and look
Step-by-step explanation i saw it there
2
19$
Because 19$ 20% off=15.20 and you added taxes]
Have a great day :}
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