(7x-1)/0.024=(1-0.2x)/0.018-(5x+1)/0.012
问题描述:
(7x-1)/0.024=(1-0.2x)/0.018-(5x+1)/0.012
答
1000(7x-1)/24=1000(1-0.2x)/18-1000(5x+1)/12
3(7x-1)=4(1-0.2x)-6(5x+1)
21x-3=4-0.8x-30x-6
51.8x=1
x=5/259
答
两边乘0.072
3(7x-1)=4(1-0.2x)-6(5x+1)
21x-3=4-0.8x-30x-6
51.8x=1
x=1÷51.8
x=5/259