1/2X+12:1/2X-12=13:12

问题描述:

1/2X+12:1/2X-12=13:12

1/2X+12:1/2X-12=13:12 怎么解|?
13x/2-12×13=12x/2+12×12;
x/2=12×(12+13);
x/2=12×25;
x=24×25;
x=600;