Explanation:
Reorder the terms:
6+5u+ -12u= -29
u =5
Answer:
u=5
-29 = 5u + 6 - 12u
-6 -6
-35 =5u - 12u
-7u
-35 = 7u
-35 divided by 7 to get u by itself equals 5
therefore u =5
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