What is the answer to -9=-9|u|-2 ?

The answer to -9=-9|u|-2 is u=-7/9 \lor u= 7/9

Solve for u: -9=-9|u|-2

The solution is u=-7/9 \lor u= 7/9

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- 9 = - 9 ∣ u ∣ - 2

u = - \frac{7}{9} or u = \frac{7}{9}

Decimal Notation

u = - 0.77777 \dots, u = 0.77777 \dots

Solution steps

- 9 = - 9 ∣ u ∣ - 2

Switch sides

- 9 ∣ u ∣ - 2 = - 9

Move

2

to the right side

- 9 ∣ u ∣ = - 7

Divide both sides by

- 9

∣ u ∣ = \frac{7}{9}

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

u = - \frac{7}{9} or u = \frac{7}{9}

\frac{k}{8} = 1

4 ∣ 2 (x + 3) (x - 3) ∣ + 4 = 76

∣ 4 x - 4 ∣ - 5 = 7

2 ∣ 3 x + 1 ∣ - 4 = 6

- 4 ∣ x - 10 ∣ + 5 = 5

What is the answer to -9=-9|u|-2 ?
The answer to -9=-9|u|-2 is u=-7/9 \lor u= 7/9
Solve for u: -9=-9|u|-2
The solution is u=-7/9 \lor u= 7/9