来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/09/20 11:38:28
①x:24=24:16
16x=24×24,
16x=576,
16x÷16=576÷16,
x=36;
②
1
2x+
3
8x=28,
7
8x=28,
7
8x÷
7
8=28÷
7
8,
x=32;
③2x-1.65+2.35=7,
2x-1.65+2.35-2.35=7-2.35,
2x-1.65=4.65,
2x-1.65+1.65=4.65+1.65,
2x=6.3,
2x÷2=6.3÷2,
x=3.15.