solve the following questions:
x+9y-z=4. 2x+7y+3z=7. 3x+10y+4z=9
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Answer:
x =1 y = 2 639=€√`×`∆}¢{€=π•|×}£}¢=€=¢¶\}{£∆`42929Heiei=`¶`¶∆|€
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