74-17,8(x+1,5)-9,39(11-x)-32,7(10-x)=15,29(x+2)-35,57
74-17.8х-26.7-103.29+9.39х-327+32.7х=15.29х+30.58-35.57
-17.8х+32.7х-15.29х+9.39х=30.58-35.57-74+26.7+103.29+327
9х=378
х=378:9
х=42

Question

Математика: 74-17,8(x+1,5)-9,39(11-x)-32,7(10-x)=15,29(x+2)-35,57 решите, заранее

андрей2096 · Answer

74-17,8(x+1,5)-9,39(11-x)-32,7(10-x)=15,29(x+2)-35,57 74-17.8х-26.7-103.29+9.39х-327+32.7х=15.29х+30.58-35.57-17.8х+32.7х-15.29х+9.39х=30.58-35.57-74+26.7+103.29+3279х=378х=378:9х=42...