SOLUTION: i am stuck.. the problem is .35x+.25y=.3(8) x+y=8 y=-x+8 .35x+.25(-x+8+.3 .35x+.25x+2=2.4 .6x=2.4-2 i have to solve using linear equations of substitution...HELP PLEAS

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: i am stuck.. the problem is .35x+.25y=.3(8) x+y=8 y=-x+8 .35x+.25(-x+8+.3 .35x+.25x+2=2.4 .6x=2.4-2 i have to solve using linear equations of substitution...HELP PLEAS      Log On


   

Question 625554: i am stuck.. the problem is .35x+.25y=.3(8)
x+y=8
y=-x+8
.35x+.25(-x+8+.3
.35x+.25x+2=2.4
.6x=2.4-2
i have to solve using linear equations of substitution...HELP PLEASE
Answer by Khukubabu(5) About Me  (Show Source):
You can put this solution on YOUR website!
.35x+.25y=.3(8)
or, 35x+25y=2400 (multiplying both side 100)
or, 35x-25x+200=2400
or, 10x=2200
or, x=220
so, y=(-212)
I think, here, .3(8)=.3*8