What is the answer to |n|+3=13 ?

The answer to |n|+3=13 is n=-10\lor n=10

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|n|+3=13

∣ n ∣ + 3 = 13

n = - 10 or n = 10

Solution steps

∣ n ∣ + 3 = 13

Move

3

to the right side

∣ n ∣ = 10

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

n = - 10 or n = 10

∣ 6 x - 8 ∣ - 14 = - 9

∣ c + 4 ∣ = 2

- 7 ∣ 3 + n ∣ = - 35

∣ - 2 k ∣ + 9 = - 13

∣ x ∣ = \frac{13}{17}