12u + -8u = -20 solve for u
2 answers:
u= -5
12u -8u=-20
4u=-20
u=-20/4
u=-5
hopes this helps,
Xeno
Simplify.
12u - 8u = 4u
4u = -20
isolate the u, divide 4 from both sides
4u/4 = -20/4
u = -20/4
u = -5
u = -5 is your answer
hope this helps
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