How do you solve -22= 2( u - 6) - 4u?

1 Answer
Mar 4, 2018

u = 5

Explanation:

−22=2(u−6)−4u   Solve for u

1) Clear the parentheses
−22=2u−12−4u

2) Combine like terms
−22=- 2u−12

3) Add 12 to both sides to isolate the -2u term
- 10 = - 2u

4) Divide both sides by -2 to isolate u
5 = u larr answer

Answer:
u = 5

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Sub in 5 for u in the original equation

−22=2(u−6)−4 u
−22=2(5−6)−4(5)

1) Solve inside the parentheses
−22=2 ("-"1)−4 (5)

2) Clear the parentheses
−22=-2−20

3) Combine like terms
-22 = -22

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