What is the answer to |1+9x|=10 ?

The answer to |1+9x|=10 is x=-11/9 \lor x=1

Solve for x: |1+9x|=10

The solution is x=-11/9 \lor x=1

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∣ 1 + 9 x ∣ = 10

x = - \frac{11}{9} or x = 1

Decimal Notation

x = - 1.22222 \dots, x = 1

Solution steps

∣ 1 + 9 x ∣ = 10

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

1 + 9 x = - 10 or 1 + 9 x = 10

1 + 9 x = - 10 or 1 + 9 x = 10

x = - \frac{11}{9} or x = 1

∣ 7 x + 1 ∣ - 16 = 9

6 ∣ w ∣ = 0

\frac{1}{9} x = 4

- 20 = - ∣ 4 g ∣

∣ 4 x + 5 ∣ - 5 = 15