Question

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

Answer 1

u = 2

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

Answer 2

u=2

Explanation:

8u-21 = 2u-9

+21 +21

8u= 2u + 12

-2u -2u

6u= 12

divide by 6, u=2 !!