cookiexterm5
cookiexterm5
18-01-2017
Mathematics
contestada
Help and please explain
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Аноним
Аноним
18-01-2017
-x + 2y = 6 then x = 2y - 6
6y = x +18 then x = 6y - 18
-----------------------substract
0 = -4y + 12
4y = 12
y = 3
-x + 2y = 6
-x + 2(3) = 6
-x = 6 - 6
x = 0
answer: x = 0 (second choice)
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