What is the answer to |10x+9|=5 ?

The answer to |10x+9|=5 is x=-7/5 \lor x=-2/5

Solve for x: |10x+9|=5

The solution is x=-7/5 \lor x=-2/5

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∣ 10 x + 9 ∣ = 5

x = - \frac{7}{5} or x = - \frac{2}{5}

Decimal Notation

x = - 1.4, x = - 0.4

Solution steps

∣ 10 x + 9 ∣ = 5

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

10 x + 9 = - 5 or 10 x + 9 = 5

10 x + 9 = - 5 or 10 x + 9 = 5

x = - \frac{7}{5} or x = - \frac{2}{5}

6 = ∣ - 2 j ∣ + 2

∣ z - 9 ∣ = 1

2 ∣ x + 4 ∣ + 4 = 2

6 + 4 ∣ 8 x - 2 ∣ = 30

7 ∣ 2 - 6 x ∣ = 2 x + 2