题目内容
| 求X的值: X÷2.4=4 | 210+X=640 | 0.7X=0.56 |
| X÷4=160 | X+0.35=7.25 | 2X=10.4. |
x÷2.4=4,
x÷2.4×2.4=4×2.4,
x=9.6;
210+x=640,
210+x-210=640-210,
x=430;
0.7x=0.56,
0.7x÷0.7=0.56÷0.7,
x=0.8;
x÷4=160,
x÷4×4=160×4,
x=640;
x+0.35=7.25,
x+0.35-0.35=7.25-0.35,
x=6.9;
2x=10.4,
2x÷2=10.4÷2,
x=5.2.
x÷2.4×2.4=4×2.4,
x=9.6;
210+x=640,
210+x-210=640-210,
x=430;
0.7x=0.56,
0.7x÷0.7=0.56÷0.7,
x=0.8;
x÷4=160,
x÷4×4=160×4,
x=640;
x+0.35=7.25,
x+0.35-0.35=7.25-0.35,
x=6.9;
2x=10.4,
2x÷2=10.4÷2,
x=5.2.
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