Question

porfa resuelvan esto le doy corona

Answer 1

Respuesta:

a) 3x+y+x-y = 10 + 2

4x = 12

x = 12/4

x = 3

x-y = 2

3-y = 2

3-2 = y

1 = y

b) 4x+3y+x-y = 13 - 2

5x+2y = 11