(5x+4)/6=(x-3)/4+1 2(5x+4)=3(x-3)+12

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(5x+4)/6=(x-3)/4+12(5x+4)=3(x-3)+12(5x+4)/6=(x-3)/4+12(5x+4)=3(x-3)+12(5x+4)/6=(x-3)/4+12(5x+4)=3(x-

(5x+4)/6=(x-3)/4+1 2(5x+4)=3(x-3)+12
(5x+4)/6=(x-3)/4+1 2(5x+4)=3(x-3)+12

(5x+4)/6=(x-3)/4+1 2(5x+4)=3(x-3)+12
从前面的两边同时乘以12就得到后面的了哦