E + F = 22
F + G = 25
E + G = 23
A + B = 19
A + C = 21
B + C = 12
Find A + B + C + E + F + G.
E+F -F-G +E+G = 22-25+23
2E= 20
E=10 then G =13 then F=12
A+B -A-C +B+C = 19 -21 +12
2B = 10
B=5
A=14
C=7 You can add them together
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