What is the answer to |6x|=18 ?

The answer to |6x|=18 is x=-3\lor x=3

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|6x|=18

∣ 6 x ∣ = 18

x = - 3 or x = 3

Solution steps

∣ 6 x ∣ = 18

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

6 x = - 18 or 6 x = 18

6 x = - 18 or 6 x = 18

x = - 3 or x = 3

\frac{2 x}{9} + 4 = \frac{x}{3} - 1 - \frac{x}{9}

7 a^{2} + 48 a + 36

\frac{ln ( 9 )}{ln ( 3 )}

3 s^{2} + 10 s + 6 = - 30

\frac{4 x}{x + 2} + \frac{5}{x + 1} < 0