Respuesta :

minulaad

Answer:

-8u+2u+12u-19u-2u=15

-6u+12u-19u-2u=15

6u-19u-2u=15

-13u-2u=15

-15u^2=15

-15u^2÷ 15=15÷15

-u=1

u=-1

that's answer is u=-1