拆开括号里面的,然后再等式左右相加减。 1/3x+2/3=1/4x+5/44/12x-3/12x=15/12-8/121/12x=7/12x=7
7(x+2)/3=(x+5)/44(x+2)=3(x+5)4x+8=3x+154x-3x=15-8x=7
两边同时乘以12可得4(x+2)=3*(x+5)去括号4x+8=3x+154x-3x=15-8x=7
(x+2)/3=(x+5)/44(x+2)=3(x+5)4x+8=3x+154x-3x=15-8x=7