Mathematics
Senior High
Resolved
ここはなぜ解が➖1なのに➖6になるのですか。
人
(ii)x+6<0 つまりx-6のとき
-x-6>3x-2
-4x>4
x-l
x<-6という条件より x <-6
-6
-1
(i), (ii)より -6≤x≤4, x<-61
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