50(1/4)+12(1/2)+2c=19

Solución

50 (\frac{1}{4}) + 12 (\frac{1}{2}) + 2 c = 19

c = \frac{1}{4}

Pasos de solución

50 (\frac{1}{4}) + 12 (\frac{1}{2}) + 2 c = 19

Simplificar

50 (\frac{1}{4}) + 12 (\frac{1}{2}) + 2 c : 2 c + \frac{37}{2}

2 c + \frac{37}{2} = 19

Mover

\frac{37}{2}

al lado derecho

2 c = \frac{1}{2}

Dividir ambos lados entre

2

c = \frac{1}{4}

a = \frac{1}{2} (1 + x)

ln (13) = x

2 (x + 1) = - 3 (x - 2)

- 3 x = 30

2 y + 8 - 5 y = - 28