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Pepsi [2]
3 years ago
9

Help with 4 questions please

Mathematics
2 answers:
mr_godi [17]3 years ago
3 0

Answer:

Step-by-step explanation:

-1+x/3= -7

-3+x=-21. Multiply both sides by 3

X=-21 + 3

X= -18

12345 [234]3 years ago
3 0
17) x=-18
19) x=7
21) x=7
23) n=8
The answer are definitely correct. I'm not gonna trick you.

Hope I can help you!
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