Question

Ayuden me
dados los conjuntos unitarios :p={5x-2;18} r10;3y+1} s={x+y;z-1} hallar: x+z-y

Answer 1

5x - 2 = 18

5x = 20

x = 4

10 = 3y + 1

9 = 3y

3 = y

x + y = z - 1

4 + 3 = z - 1

7 = z - 1

8 = z

Halla

X + Z - Y

4 + 8 - 3

9