25%x=75%,50%x-25%x=25,x+31%=39.3,x-18%=65.6,20x-30=150请把算式和答案写下来,
问题描述:
25%x=75%,50%x-25%x=25,x+31%=39.3,x-18%=65.6,20x-30=150请把算式和答案写下来,
答
25%x=75%,50%x-25%x=25,x+31%=39.3,x-18%=65.6,20x-30=150请把算式和答案写下来,