SOLUTION: Use Gaussian elimination to solve the system
w + z = 380
w + x = 600
x - y = 170
y - z = 50
The solution set is {_,_,_}
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Question 306408: Use Gaussian elimination to solve the system
w + z = 380
w + x = 600
x - y = 170
y - z = 50
The solution set is {_,_,_}
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
w + z = 380
w + x = 600
x - y = 170
y - z = 50
id start working backwards
solve for y
solve for x
fill in y with what it equals
solve for w
substitute for x
solve for z
substitute for w
so z can be any number
so if z=1 then x=221 y=51 w=381
if z=2 then x=222 y=52 w=382
if z=3 then x=223 y=53 w=383
and so on
{z=|(-∞,+∞)}
all real numbers
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