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Who started this equation the problem

779,429,4482010-01-25 01:01:35 +0000 #1
a school football team league scoring rules are: a win 3 points, flat points in a get a negative to a get 0 points, who started this (2) classes in the school league soccer team played 14 games the ball , in which the negative of the five games, a total of 19 points, you know who started this (2) classes in how many games do win?

Solution: Let

the column type:

transposition was:

the merger of similar items were:

coefficient of a was:
wangjiminb2010-01-25 01:17:42 +0000 #2
: set win X games are flat 14-5-X games

the column type: 3X +14-5- X = 19

transposition was: 3X-X = 19-14 +5

Similar items were combined: 2X = 10

factor of 1 were: X = 5

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