What is the answer to 12=|m+8| ?

The answer to 12=|m+8| is m=-20\lor m=4

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12=|m+8|

12 = ∣ m + 8 ∣

m = - 20 or m = 4

Solution steps

12 = ∣ m + 8 ∣

Switch sides

∣ m + 8 ∣ = 12

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

m + 8 = - 12 or m + 8 = 12

m + 8 = - 12 or m + 8 = 12

m = - 20 or m = 4

2 (∣ x + 4 ∣ + 3) = 6

m^{2} + 12 m - 64 = 0

\frac{x}{2} + 2 x \leq x + 1

\frac{( - 7 ) - 4}{( - 7 ) ^{2} - 16}

15 a - 4 \leq 12 a + 5