(清原县)求未知数 ①:x=0.3: ②1﹣25% x="0.5" ③6x﹣7.3=19.7.
10-÷×1
325×0.36+6.75×36
5.6×0.375+×5.4-0.375×0.9
5.6x+4x=17.28
x+=