Answer:
u=5
Step-by-step explanation:
5u+6-12u=-29
5u-12u+6=-29
-7u+6=-29
-7u=-29-6
-7u=-35
-7u/-7=-35/-7
u=-35/-7
5u - 12u + 6 = -29
-7u + 6 = -29
-7u = -35
u = 5
