(3x+5)/5-(x-6)=x/3
15*(3x+5)/5-15*(x-6)=15*x/3
3(3x+5)-15(x-6)=5x
9x+15-15x+90=5x
-6x+75=5x
5x+6x=75
11x=75
x=75/113（x除以11-2）-5=2+3x除以33(x/11-2)-5=(2+3x)/3 3x/11-6-5=(2+3x)/3 3x/11-11=(2+3x)/3 33*3x/11-33*11=33*(2+3x)/3 3*3x-363=11(2+3x) 9x-363=22+33x 33x-9x=-363-22 24x=-385 x=-385/245除以3（2x-5分之3）=（2x-5）除以5-9分之81.5(x+3)-3=5x/3 3/2*(x+3)-3=5x/3 6*3/2*(x+3)-6*3=6*5x/3 9(x+3)-18=2*5x 9x+27-18=10x 9x+9=10x 10x-9x=9 x=95除以3（2x-5分之3）=（2x-5）除以5-9分之85(2x-3/5)/3=(2x-5)/5-8/9 (10x-3)/3=(2x-5)/5-8/9 45*(10x-3)/3=45*(2x-5)/5-45*8/9 15(10x-3)=9(2x-5)-40 150x-45=18x-45-40 150x-45=18x-85 150x-18x=85-45 132x=40 33x=10 x=10/33最后一題：（2x-7)除以2-（6x-5)除以3=2x+3(2x-7)/2-(6x-5)/3=2x+3 6*(2x-7)/2-6*(6x-5)/3=6*(2x+3) 3(2x-7)-2(6x-5)=6(2x+3) 6x-21-12x+10=12x+18 -6x-11=12x+18 12x+6x=-11-18 18x=-29 x=-29/18