6(1-(1-x)\5)=1 (1-x)\12+10=-x ((1.2y-1)\0.3)-((1-2y)\0.6)=y
问题描述:
6(1-(1-x)\5)=1 (1-x)\12+10=-x ((1.2y-1)\0.3)-((1-2y)\0.6)=y
6(1-(1-x)\5)=1
(1-x)\12+10=-x
((1.2y-1)\0.3)-((1-2y)\0.6)=y
答
解答:
6(1-(1-x)\5)=1
1-(1-x)\5=1/6
(1-x)/5=5/6
∴ 1-x=25/6
∴x=-19/6
(1-x)\12+10=-x
(1-x)/12=-(x+10)
1-x=-12(x+10)
1-x=-12x-120
11x=-121
x=-11
((1.2y-1)\0.3)-((1-2y)\0.6)=y
两边同时乘以0.6
(1.2y-1)*2-(1-2y)=0.6y
2.4y-2-1+2y=0.6y
3.8y=3
y=15/19