What is the answer to |k+1|+2=8 ?

The answer to |k+1|+2=8 is k=-7\lor k=5

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|k+1|+2=8

∣ k + 1 ∣ + 2 = 8

k = - 7 or k = 5

Solution steps

∣ k + 1 ∣ + 2 = 8

Move

2

to the right side

∣ k + 1 ∣ = 6

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

k + 1 = - 6 or k + 1 = 6

k + 1 = - 6 or k + 1 = 6

k = - 7 or k = 5

9 + 12 n

\frac{2 - 3 x}{5} \geq 2

\frac{4}{7} + \frac{2}{3}

9 k^{2} - k - 1 = 3 k^{2}

- \frac{4}{5} (7) - \frac{2}{5}