0.7x-49=0.7?
回答 (8)
2008-05-02 5:37 pm
✔ 最佳答案
Divide through by .7 yieldsx-70=1
clearly x=71
2008-05-05 7:32 pm
7x - 490 = 7
7x = 497
x = 71
7x = 497
x = 71
2008-05-02 5:45 pm
0.7x-49=0.7
0.7x-49+49-0.7+49
0.7x=49.7
multiply each side by 10
7x=497
x=71
0.7x-49+49-0.7+49
0.7x=49.7
multiply each side by 10
7x=497
x=71
2008-05-02 5:43 pm
x=71
2008-05-02 5:35 pm
0.7x - 49 = 0.7
Add 49 to both sides
0.7x = 49.7
Divide both sides by 0.7 and the answer is
x = 71
Add 49 to both sides
0.7x = 49.7
Divide both sides by 0.7 and the answer is
x = 71
2008-05-02 5:35 pm
0.7x - 49 = 0.7
0.7x = 0.7 + 49
x = 49.7/0.7
x = 71
0.7x = 0.7 + 49
x = 49.7/0.7
x = 71
2008-05-02 5:34 pm
0.7x-49=0.7 add +49 to both sides
0.7x=49.7 divide both sides by 0.7
x=71
0.7x=49.7 divide both sides by 0.7
x=71
2008-05-02 5:33 pm
x=71
收錄日期: 2021-05-01 10:35:09
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