X/80+(X+215)/210=10 方程怎么解拜托各位大神
X/80+(X+215)/210=10 方程怎么解拜托各位大神
数学人气:434 ℃时间:2020-03-18 10:11:17
优质解答
X/80+(X+215)/210=10(21x/1680)+【(8x+1720)/1680】=10 (29x+1270)/1680=10 29x+1270=16800 29x=15530 x=15530/29
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