What is the answer to |a|=4 ?

The answer to |a|=4 is a=-4\lor a=4

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|a|=4

∣ a ∣ = 4

a = - 4 or a = 4

Solution steps

∣ a ∣ = 4

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

a = - 4 or a = 4

- \frac{5}{2} + 3

\frac{2}{\frac{4}{3}}

25 u^{2} - 1

11 \leq 13 - q

\frac{9 !}{( 9 - 5 ) ! 5 !}