题目内容
解方程.
①x:24=24:16
②
x+
x=28
③2x-1.65+2.35=7.
①x:24=24:16
②
| 1 |
| 2 |
| 3 |
| 8 |
③2x-1.65+2.35=7.
①x:24=24:16
16x=24×24,
16x=576,
16x÷16=576÷16,
x=36;
②
x+
x=28,
x=28,
x÷
=28÷
,
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.
16x=24×24,
16x=576,
16x÷16=576÷16,
x=36;
②
| 1 |
| 2 |
| 3 |
| 8 |
| 7 |
| 8 |
| 7 |
| 8 |
| 7 |
| 8 |
| 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.
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