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bob7220
19.04.2021 •
Mathematics
What is the solutions to this system of equations?
x+ 2y - z = 3
2x - y + 2z = 6
x- 3y + 3z = 4
A) (-6,7,14)
B) (2,-3,5)
C) infinite solutions
D) no solutions
Solved
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Ответ:
D- No solution
Step-by-step explanation:
Isolate x for x+2y−z=3: x=3−2y+z
then Simplify
then Isolate y for −5y+4z+6=6: y= 4z 5 −5y+4z+6=6 Subtract 6 from both sides −5y+4z+6−6=6−6 Simplify −5y+4z=0 Subtract 4z from both sides −5y+4z−4z=0−4z Simplify −5y=−4z Divide both sides by −5 −5y −5 = −4z −5 Simplify y= 4z 5
lastly simply.
Ответ: