SOLUTION: Need to solve this system.i keep getting stuck.
3x+4y+z=7
2y+z=3
-5+3y+8z=-31
Algebra.Com
Question 584842: Need to solve this system.i keep getting stuck.
3x+4y+z=7
2y+z=3
-5+3y+8z=-31
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
start with solve for z
next look at solve for y
substitute what z =
find z
find x with last equation
substitute for y and z
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