What is the answer to |10x+9|=18 ?

The answer to |10x+9|=18 is x=-27/10 \lor x= 9/10

Solve for x: |10x+9|=18

The solution is x=-27/10 \lor x= 9/10

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∣ 10 x + 9 ∣ = 18

x = - \frac{27}{10} or x = \frac{9}{10}

Solution steps

∣ 10 x + 9 ∣ = 18

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

10 x + 9 = - 18 or 10 x + 9 = 18

10 x + 9 = - 18 or 10 x + 9 = 18

x = - \frac{27}{10} or x = \frac{9}{10}

x^{2} - 4 x = - 5

∣ x + 1 ∣ + ∣ x - 2 ∣ + ∣ x - 5 ∣ = x + 4

x^{2} - 2 = 2 - 3 x

12 + 3 ∣ x + 3 ∣ = 9 x - 9

∣ 1 - 2 x ∣ = - 2 x

What is the answer to |10x+9|=18 ?
The answer to |10x+9|=18 is x=-27/10 \lor x= 9/10
Solve for x: |10x+9|=18
The solution is x=-27/10 \lor x= 9/10