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Tamiku [17]
3 years ago
5

Solve -7u = -21 for u. u =

Mathematics
2 answers:
Marina CMI [18]3 years ago
5 0

Answer:

3

Step-by-step explanation:

-7u = -21

To solve the problem we need to isolate u. Since -7 is being multiplied by u, we could divide to get rid of it.

-7u

\frac{ - 7u}{ - 7}  =  - 21 \div  - 7

u= -21/-7

u = 3

lesya692 [45]3 years ago
3 0

Answer: u = 3

Step-by-step explanation:

Divide each side by -7 to get u = 3.

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