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Schach [20]
3 years ago
5

Solve for u. 8u-21 = 2u-9

Mathematics
2 answers:
erastovalidia [21]3 years ago
6 0

Answer:

u=2

Step-by-step explanation:

8u-21 = 2u-9

+21             +21

8u= 2u + 12

-2u    -2u

6u= 12

divide by 6, u=2 !!

garri49 [273]3 years ago
3 0

Answer:

u = 2

Step-by-step explanation:

8u - 21 = 2u - 9

subtract 2 u from both sides

6u - 21 = -9

add 21 to both sides

6u = 12

divide both sides by 6

u = 2

hope this helps

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