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Does this system of equation have a solution?

Mathematics
Tutor: None Selected Time limit: 0 Hours

{y=2/3x-5

{4x-8y=11

Apr 22nd, 2015

we put the systems in the form:

2x-3y=15
4x-8y=11
_______
multiply the first by 2
4x-6y=30
4x-8y=11
__________
subtract:
2y=19 => y=19/2

from the first: x=(15+3y)/2 = (15+ 3*19/2)/2 = (15+ 57/2)/2= 87/4
=>x=87/4
Apr 22nd, 2015

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