What is the answer to -2|5x-7|+9=-1 ?

The answer to -2|5x-7|+9=-1 is x= 2/5 \lor x= 12/5

Solve for x: -2|5x-7|+9=-1

The solution is x= 2/5 \lor x= 12/5

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- 2 ∣ 5 x - 7 ∣ + 9 = - 1

x = \frac{2}{5} or x = \frac{12}{5}

Decimal Notation

x = 0.4, x = 2.4

Solution steps

- 2 ∣ 5 x - 7 ∣ + 9 = - 1

Move

9

to the right side

- 2 ∣ 5 x - 7 ∣ = - 10

Divide both sides by

- 2

∣ 5 x - 7 ∣ = 5

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

5 x - 7 = - 5 or 5 x - 7 = 5

5 x - 7 = - 5 or 5 x - 7 = 5

x = \frac{2}{5} or x = \frac{12}{5}

∣ x + 9 ∣ + 2 = 4

∣ - 5 x + 2 ∣ = x + 26

x^{4} - 2 + ∣ x ∣ = 0

∣ 6 + r ∣ + 10 = 14

∣ d ∣ = - 2

What is the answer to -2|5x-7|+9=-1 ?
The answer to -2|5x-7|+9=-1 is x= 2/5 \lor x= 12/5
Solve for x: -2|5x-7|+9=-1
The solution is x= 2/5 \lor x= 12/5