algebra 2
posted by tikenya .
how do u solve a system of linear equations in three variables?
for example this problem
Ex.1 2x2y+z=3
5yz=31
x+3y+2z=21

http://www.mathwarehouse.com/algebra/planes/systems/threevariableequations.php

y=3x+4

81x218x+1
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