SOLUTION: solve A+2B+2C=27 A+B+C=16 2A+B+2C=27

SOLUTION: solve A+2B+2C=27 A+B+C=16 2A+B+2C=27

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Question 329046: solve
A+2B+2C=27
A+B+C=16
2A+B+2C=27
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!

multiply by 2

subtract

multiply by 2

subtract

substitute
add
subtract 10

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