You can put this solution on YOUR website! A+2B+C=99
2A+B+C=142
2A+2C=154
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put the system of linear equations into standard form
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x+2y+z=99
2x+y+z=142
2x+2z=154
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solution:
x = 54
y = 11
z = 23
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answer:
A = 54
B = 11
C = 23
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