What is the answer to 1=|-9s| ?

The answer to 1=|-9s| is s=-1/9 \lor s= 1/9

The solution is s=-1/9 \lor s= 1/9

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1=|-9s|

1 = ∣ - 9 s ∣

s = - \frac{1}{9} or s = \frac{1}{9}

Decimal Notation

s = - 0.11111 \dots, s = 0.11111 \dots

Solution steps

1 = ∣ - 9 s ∣

Switch sides

∣ - 9 s ∣ = 1

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

- 9 s = - 1 or - 9 s = 1

- 9 s = - 1 or - 9 s = 1

s = - \frac{1}{9} or s = \frac{1}{9}

2 ∣ x - 1 ∣ + 2 = 5

0 = - ∣ x + 6 ∣

∣ 3 x - 9 ∣ + 4 = 3

x^{2} + 2 x = 2 - ∣ x ∣

x + x^{2} + 4 - 4 x = 2