Solve for x, y, z
z=0
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21x+0x=1
Consider the first equation. Multiply 0 and 17 to get 0.
21x+0=1
Anything times zero gives zero.
21x=1
Anything plus zero gives itself.
x=\frac{1}{21}
Divide both sides by 21.
x=\frac{1}{21} y=0 z=0
The system is now solved.
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