3分之2x-1-6分之x-4=1
问题描述:
3分之2x-1-6分之x-4=1
5%-31%=12%+2
5%-31%=12%+2限制5分钟,快点
答
(2x-1)/3 - (x-4)/6 = 1
(4x-2)/6 - (x-4)/6 = 1
4x-2-x+4 = 6
3x = 4
x=4/35%-31%=12%+2这不是一条等式,亦没有未知数. 不是数学题5%x-31%=12%x+2快一点5%x-31%=12%x+25x/100-31/100 = 12x/100+200/1005x-31 =12x+200-231 = 7xx= -33