What is the answer to |4x+8|-5=-5 ?

The answer to |4x+8|-5=-5 is x=-2

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|4x+8|-5=-5

∣ 4 x + 8 ∣ - 5 = - 5

x = - 2

Solution steps

∣ 4 x + 8 ∣ - 5 = - 5

Add

5

to both sides

∣ 4 x + 8 ∣ - 5 + 5 = - 5 + 5

Simplify

∣ 4 x + 8 ∣ = 0

Apply absolute rule: If

∣ u ∣ = 0

then

u = 0

4 x + 8 = 0

4 x + 8 = 0 : x = - 2

x = - 2

\frac{3 - 4 i}{8 + 2 i}

x^{2} - 10 x - 9 = 2 x

2 x^{2} + 13 x + 21 = 0

(4 x + 4)^{2} - 4 = 0

(e^{t})^{2}