|12-4c|=15

Solución

∣ 12 - 4 c ∣ = 15

c = - \frac{3}{4} or c = \frac{27}{4}

Pasos de solución

∣ 12 - 4 c ∣ = 15

Aplicar las propiedades de los valores absolutos: Pi

∣ u ∣ = a, a > 0

entonces

u = a

u = - a

12 - 4 c = - 15 or 12 - 4 c = 15

12 - 4 c = - 15 or 12 - 4 c = 15

c = - \frac{3}{4} or c = \frac{27}{4}

3 - 2 ∣ 2 j - 5 ∣ = - 4

∣ x - 3 ∣ + 2 = 18

∣ k ∣ - 7 = - 7

∣ 2 x + 8 ∣ = 0

∣ 2 x + 8 ∣ = 2