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ss7ja [257]
3 years ago
10

Pls help me step by step faster if you can

Mathematics
1 answer:
Veronika [31]3 years ago
6 0

Answer:

Step-by-step explanation:

If you meant to type    x+1<21, then we simplify this inequality by subtracting 1 from both sides, ending up with x < 20.

I do not recognize what your "4" represents.

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Well, to find u, we have to remove all that is attached to it so the equation can just be u=...
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