Respuesta :

nadiaaaa828

Answer:

since when did questions have 2 equal signs

this looks made up

Step-by-step explanation:

x=-13/3
a= 7.5
y=11/3

3x+13=15-2a=22-6y=0

solve for x:
3x+13=0
3x=-13
x=-13/3

solve for a:
15-2a=0
-2a+15=0
-2a=-15
a= 7.5

solve for y:
22-6y=0
-6y+22=0
-6y=-22
y=11/3