关于x的方程：(1)ax-1=bx;(2)1/3m(x-m)=1/4(x+2m)quick^

Question

关于x的方程：(1) ax-1=bx ;(2) 1/3m(x-m)=1/4(x+2m)
quick^

Answer 1

：(1) ax-1=bx ;
ax-bx=1
(a-b)x=1
a-b不=0时,x=1/(a-b)
a-b=0时,无解.
(2) 1/3m(x-m)=1/4(x+2m)
4m(x-m)=3(x+2m)
4mx-4m^2=3x+6m
4mx-3x=4m^2+6m
(4m-3)x=2m(2m+3)
4m-3不=0时,解是x=2m(2m+3)/(4m-3)