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OpenStudy (pokemon23):
From 12x-6y+9z, subtract -x-3z+6y.
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OpenStudy (pokemon23):
help me
OpenStudy (anonymous):
13x-12y+12z
OpenStudy (anonymous):
12x - 6y + 9z - (-x - 3z + 6y) => 12x - 6y + 9z + x + 3z - 6y => 13x -12y +12z
OpenStudy (anonymous):
12x-6y+9z-(-x-3z+6y) =12x-6y+9z+x+3z-6y =13x-12y+12z
OpenStudy (nottim):
happy birthday.
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