作业帮填空题 (29 18:38:34)方程7x-1/0.024=1-0.2x/0.018-5x+1/0.012的根是_____.
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填空题 (29 18:38:34)方程7x-1/0.024=1-0.2x/0.018-5x+1/0.012的根是_____.
填空题 (29 18:38:34)
方程7x-1/0.024=1-0.2x/0.018-5x+1/0.012的根是_____.
填空题 (29 18:38:34)方程7x-1/0.024=1-0.2x/0.018-5x+1/0.012的根是_____.
7x+5x+0.2x/0.018=1+1/0.024+1/0.012
12x+0.09x=1+0.008
12.09x=1.008
x=168/2015
1125/8