作业帮2（X÷3+1)+5＝2（X÷5+1)+115
来源：学生作业帮助网 编辑：作业帮 时间：2024/12/01 20:17:35
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2（X÷3+1)+5＝2（X÷5+1)+115
2（X÷3+1)+5＝2（X÷5+1)+115
2（X÷3+1)+5＝2（X÷5+1)+115
2X/3+7=2X/5+117
2X/3-2X/5=110
(10X-6X)/15=110
X=825/2
"/"代表÷
2x/3+2+5=2x/5+2+115
2/3x+7=2/5x+117
4/15x=108
x=405
2x/3+2+5=2x/5+2+115
2x/3=2x/5+110
4x/15=110
x=88/3
2(X/3 3/3)=2(X/5 5/5) (2X 6)/3 5=(2X 10)/5 115 10X 30 75=6X 30 1725 4X=1650 X=412.5
2x/3+2+5=2x/5+2+115
2x/3=2x/5+110
4x/15=110
x=88/3
这个主要就是要注意移项要改变符号
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