解:x-3x/8=5x/8=5/12X=2/3.x+3x/7=10x/7=20X=14.
x-3/8x=12/5 5/8x=12/5 5/8x*8/5=12/5*8/5 x=96/25
x-3/8x=5/125/8x=5/12x=2/3x+3/7x=2010/7x=20x=14
x减八分之三x等于十二分之五解:5/8×X=5/12X=2/3x+七分之三x=20解:10/7X=20X=14