What is the answer to 3+|-6n|=9 ?

The answer to 3+|-6n|=9 is n=-1\lor n=1

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3+|-6n|=9

3 + ∣ - 6 n ∣ = 9

n = - 1 or n = 1

Solution steps

3 + ∣ - 6 n ∣ = 9

Move

3

to the right side

∣ - 6 n ∣ = 6

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

- 6 n = - 6 or - 6 n = 6

- 6 n = - 6 or - 6 n = 6

n = - 1 or n = 1

27 + y^{3}

4 x^{2} + 1 = 0

∣ x - 1 ∣ \leq 2 (x - 1)

4 x - \frac{1}{3} (15 x - 3 (- 1 + 2 x)) = \frac{3}{2} (9 - x - 6)

2 x - 9 > 8 x - 21