Question

5x+3=12 x-y=-4 igualacion​

Answer 1

5x+3= 12

x-y = -4

x= 12 - 3 / 5

x = -4 + y

12-3/5 = -4 + y

12 - 3 = 5(-4) + y

9= -20 + 5y

9 + 20 = 5y

29/ 5= y

5.8 = y

Ahora hallamos "x"

x - y = -4

x - 5.8= -4

x = -4 + 5.8

x= 1.8