10(16-X)+X-18=10X+(16-X)
问题描述:
10(16-X)+X-18=10X+(16-X)
答
160-10x+x-18=10x+16-x
126=18x
x=7
10(16-X)+X-18=10X+(16-X)
160-10x+x-18=10x+16-x
126=18x
x=7