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2 x+56+x+114+x=0によって分母します。2(2 x+5)+3(x+11)+12 x=0、かっこ取りに行きます。4 x+10+3 x+33+12 x=0、移動、合併の同類項得:19 x=-43、係数化1得:x=4319、つまりx=4319+式の子1156です。
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