Algebra equations problem! 10 points!

[From: ] [author: ] [Date: 11-04-22] [Hit: ]

thax!-haha stupid GINGER lol ur a cotton headed ninny muffin lol-just plug in each number for their respective variables and see which one works for all 3 given equations: B is the only one that works for all three equations therefore that is the solution-B.......

find the solutions to the equations:
EQUATIONS
3X+3Y+3Z=18
X+3Y+3Z=10
X-3Y-4Z=0
POSSIBLE ANSWERS:
A. X=-2 Y=4 Z=4
B. X=4 Y=4 Z=-2
C. X=5 Y=3 Z=9
D. X=5 Y=3 Z=3
PLZ xplain how u did it. thax!

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haha stupid GINGER lol ur a cotton headed ninny muffin lol

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just plug in each number for their respective variables and see which one works for all 3 given equations: B is the only one that works for all three equations therefore that is the solution

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B. X=4 Y=4 Z=-2

3X+3Y+3Z=18
-X+3Y+3Z=10
2x=8
x=4

4+3Y+3Z=10
4-3Y-4Z=0

3Y+3Z=6
-3Y-4Z=-4

-z=2
z=-2

3X+3Y+3Z=18
12+3Y-6=18

3Y=12
Y=4

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The answer is B

1

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