Respuesta :

Step-by-step explanation:

1. x+4 =9

x= -4 -9

= -13

2. x-2 =10

x = 2 + 10

x= 12

3. x-9 = -3

x= 9 -3

x=6

4. x +5 = 10

x= -5 -10

x= -15

5. x-6 =13

x = 6 -13

x = -13

6. y-4 = 28

y = 4 +28

y= 32