1.解方程 2.求...
1.(1)70%x+(30-x)*55%=30*65%(2)2/x-6/5x+11=1+3/2x-4(3)2x-1/2【x-1/2(x-1)】=2/3(x-1)(4)0....
1.(1)70%x+(30-x)*55%=30*65%
(2)2/x - 6/5x+11=1+3/2x-4
(3)2x-1/2【x-1/2(x-1)】=2/3(x-1)
(4)0.2/x-4 - 25=0.05/x-3
2.已知y/2+m=my-m
(1)当m=4时,求y的值
(2)当y=4时,求m的值 展开
(2)2/x - 6/5x+11=1+3/2x-4
(3)2x-1/2【x-1/2(x-1)】=2/3(x-1)
(4)0.2/x-4 - 25=0.05/x-3
2.已知y/2+m=my-m
(1)当m=4时,求y的值
(2)当y=4时,求m的值 展开
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