Question

Encontre o valor de T
3t−18=4(−3−3/4 T)

Answer 1

Resposta:

T = 1

Explicação passo-a-passo:

3t - 18= 4(-3-3/4t)

3t - 18= -12 - 12/4t

3t - 18 = -12 - 3t

3t + 3t = -12 + 18

6t= 6

t= 6/6

t=1

Answer 2

Resposta:

3t - 18 = 4.(-3-3/4t)

3t - 18 = 4.[(-3.4t -3)/4t]

3t - 18 = [(-12t -3)/t]

(3t - 18).t = -12t -3

3t² - 18t = -12t - 3

3t² - 18t + 12t + 3 = 0

3t² - 6t + 3 = 0

t² - 2t + 1 = 0

Δ = (-2)²-4.1.1 = 4-4

Δ = 0

t = -(-2)±√0

        2.1

√0 = 0

t = 2/2

t = 1