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

The answer to -2|5s-7|+9=-7 is s=-1/5 \lor s=3

Solve for s: -2|5s-7|+9=-7

The solution is s=-1/5 \lor s=3

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- 2 ∣ 5 s - 7 ∣ + 9 = - 7

s = - \frac{1}{5} or s = 3

Decimal Notation

s = - 0.2, s = 3

Solution steps

- 2 ∣ 5 s - 7 ∣ + 9 = - 7

Move

9

to the right side

- 2 ∣ 5 s - 7 ∣ = - 16

Divide both sides by

- 2

∣ 5 s - 7 ∣ = 8

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

5 s - 7 = - 8 or 5 s - 7 = 8

5 s - 7 = - 8 or 5 s - 7 = 8

s = - \frac{1}{5} or s = 3

\frac{∣ x ∣}{2} + 3 = 5

2 ∣ x + 3 ∣ = 9

2 ∣ x + 3 ∣ = 8

∣ v + 345 ∣ = 15

5 a^{2} - 11 ∣ a ∣ + 2 = 0

What is the answer to -2|5s-7|+9=-7 ?
The answer to -2|5s-7|+9=-7 is s=-1/5 \lor s=3
Solve for s: -2|5s-7|+9=-7
The solution is s=-1/5 \lor s=3