140X=70(1200-X)+90(1200+120-X)怎么解

2025-01-01 09:13:26
推荐回答(4个)
回答1:

11)MX方程(62-X)-8 =(4/5)的XMX = 30,母32 /> 12)AX方程X-10 =(110-X)10 AX = 65,B 45
13)到X方程52 + X = 2(38-X)从第二调X = 8

15)HUNTER X方程2X +4(160-X)= 390 HUNTER X = 125狗35

17)×(45-20)式X = 15需要X = 0.6小时

18)摩托车速度所述式(X-30)* 9 = 30 * 3摩托车车速X = 40(距离超市公里每小时)

19)所述
C的AB中间140X = 70(1200-X)+90(1200-120-X)X = 604 B AC中间140X = 70(1200-X)+90(+120- 1200 X)X = 676

回答2:

140x=70×(1200-x)+90×(1200+120-x)
140x=84000-70x+108000-90x+10800
300x=202800
x=676

回答3:

140x=70*1200-70x+90*1200+90*120-90x
140X=84000—70X+108000+10800—90X
140X+70X+90X=84000+108000+10800
300X=202800
X=676

回答4:

140X=84000—70X+108000+10800—90X
140X+70X+90X=84000+108000+10800
300X=202800
X=676