三個奇數(shù)分別是 x x+2 x+4
連個偶數(shù) X+1 X+3
(x+x+2+x+4)-(x+1+x+3)=15 (x+x+2+x+4)是三個奇數(shù)的和 (x+1+x+3)是兩個偶數(shù)的和
根據(jù)提議就是相減的15
3x+6-2x-4=15
x=13
所以這三個奇數(shù)是 13 15 17
已知三個連續(xù)奇數(shù)的和比它們相同的兩個偶數(shù)的和多15,求三個連續(xù)奇數(shù).
已知三個連續(xù)奇數(shù)的和比它們相同的兩個偶數(shù)的和多15,求三個連續(xù)奇數(shù).
▲列算式（規(guī)整）最好有解釋!答題好的送分!
▲列算式（規(guī)整）最好有解釋!答題好的送分!
數(shù)學人氣：579 ℃時間：2019-10-17 04:29:04
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