SOLUTION: we are solving the x and y values of the linear equations using the substitution method im stuck 0.5x-2y=17 2x+y=104 can you help me solve the x nd y values

Algebra ->  Expressions-with-variables -> SOLUTION: we are solving the x and y values of the linear equations using the substitution method im stuck 0.5x-2y=17 2x+y=104 can you help me solve the x nd y values      Log On


   

Question 179047This question is from textbook
: we are solving the x and y values of the linear equations using the substitution method
im stuck
0.5x-2y=17
2x+y=104
can you help me solve the x nd y values This question is from textbook

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
(1) .5x-2y=17
(2) 2x%2By=104
You can solve for x or y
in either equation and substitute it
into the other equation
I'll solve for x in (1)
(1) .5x-2y=17
.5x+=+2y+%2B+17
x+=+4y+%2B+34
Now I'll substitute this expression for {{x}}}
In equation (2)
(2) 2x%2By=104
2%2A%284y+%2B+34%29+%2B+y+=+104
8y+%2B+68+%2B+y+=+104
9y+=+36
y+=+4 answer
I'll substitute this back into (1)
(1) .5x-2y=17
.5x+-+2%2A4+=+17
.5x+=+25
x+=+50 answer