2b+2v+6y = 52
2b+2v+6y-6y = 52-6y
2b+2v= 52-6y
2b-2b+2v= 52-6y-2b
2v= 52-6y-2b
2v/2= 52-6y-2b/2
v=26-3y-b
5b+4v+3y = 52
5b+4(26-3y-b)+3y = 52
5b+4(26) (4)(-3y) (4)(-b)+3y = 52
5b+104-12y-4b+3y=52
b+104-9y=52
b+104-9y-104=52-104
b-9y=-52
b-9y+9y=-52+9y
b=9y-52
v=26-3y-(9y-52)
v=26-3y-9y+52
v=78-12y
6b+4v+2y = 48
6(9y-52)+4(78-12y)+2y = 48
6(9y) (6)(-52)+4(78) (4)(-12y)+2y = 48
54y-312+312-48y+2y=48
54y-48y+2y=48
8y=48
8y/8=48/8
y=6
v=78-12y=78-12(6)=78-72=6
b=9y-52=9(6)-52=54-52=2