Question

Doy coronita por fis ​

Answer 1

Respuesta: a)

Si el conjunto M = {19, 2a - 1} es unitario, entonces:

19 = 2a - 1

19 + 1 = 2a

20 = 2a

20/2 = a

10= a

Si los conjuntos P = {5b + 3, 28} y Q = {43, 3c - 8} son iguales, entonces:

5b + 3 = 43

5b = 43 - 3

5b = 40

b = 40/5

b = 8

28 = 3c - 8

28 + 8 = 3c

36 = 3c

36/3 = c

12 = c

"Calculamos a + b + c"

a + b + c

10 + 8 + 12

18 + 12

30