What is the answer to -4|4x+8|+7=-9 ?

The answer to -4|4x+8|+7=-9 is x=-3\lor x=-1

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-4|4x+8|+7=-9

- 4 ∣ 4 x + 8 ∣ + 7 = - 9

x = - 3 or x = - 1

Solution steps

- 4 ∣ 4 x + 8 ∣ + 7 = - 9

Move

7

to the right side

- 4 ∣ 4 x + 8 ∣ = - 16

Divide both sides by

- 4

∣ 4 x + 8 ∣ = 4

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

4 x + 8 = - 4 or 4 x + 8 = 4

4 x + 8 = - 4 or 4 x + 8 = 4

x = - 3 or x = - 1

4 x + 6 \leq 2

- 0.2 + \frac{7}{10}

4 ∣ 3 + 3 x ∣ + 2 \geq 50

10 x^{2} - 4 x = 0

\frac{81}{25}

What is the answer to -4|4x+8|+7=-9 ?
The answer to -4|4x+8|+7=-9 is x=-3\lor x=-1
Solve for x: -4|4x+8|+7=-9
The solution is x=-3\lor x=-1