Question

12-2u=9u+45 plssss help

Answer 1

u = -3

Explanation:

12 - 2u = 9u + 45

12 - 2u + 2u = 9u + 2u + 45

12 = 11u + 45

12 - 45 = 11u + 45 - 45

-33 = 11u

-33/11 = u

-3 = u

Check:

12 - 2(-3) = 9(-3) + 45

12 + 6 = -27 + 45 = 18

Answer 2

Explanation:

12 - 2u = 9u + 45

-2u - 9u = 45 -12

-11u = 33 we'll cut 33 by 11 in 3 times

u = -3 answer