化简(x-1)/3-(10+1)/12-(2x-3)/4 及其解方程x/0.7-(0.17x-0.2x)/0.03=1十万火急的

化简(x-1)/3-(10+1)/12-(2x-3)/4 及其解方程x/0.7-(0.17x-0.2x)/0.03=1十万火急的
化简(x-1)/3-(10+1)/12-(2x-3)/4
及其解方程
x/0.7-(0.17x-0.2x)/0.03=1
十万火急的

化简(x-1)/3-(10+1)/12-(2x-3)/4 及其解方程x/0.7-(0.17x-0.2x)/0.03=1十万火急的
(x-1)/3-(10+1)/12-(2x-3)/4
=[4(x-1)-11-3(2x-3)]/12
=(4x-4-11-6x+9)/12
=-(2x+6)/12
=-(x+3)/6
x/0.7-(0.17x-0.2x)/0.03=1
10x/7-(17x-20x)/3=1
10x/7+x=1
10x+7x=7
x=7/17