2 - (3a + 2) = 6 a + 3b - 2b = 92 - 3a - 2 = 6 a + b = 9-3a = 6 -2 + b = 9a = -2 b = 112c - 9 = -3 c + 3 - 4d = -152c = 6 3 + 3 - 4d = -15c = 3 -4d = -21 d = 21/4
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2 - (3a + 2) = 6 a + 3b - 2b = 9
2 - 3a - 2 = 6 a + b = 9
-3a = 6 -2 + b = 9
a = -2 b = 11
2c - 9 = -3 c + 3 - 4d = -15
2c = 6 3 + 3 - 4d = -15
c = 3 -4d = -21
d = 21/4