(2/9x+15):【x-(2/9x+15)】=1:1
问题描述:
(2/9x+15):【x-(2/9x+15)】=1:1
答
(2/9x+15):【x-(2/9x+15)】=1:1
2/9x+15=x-(2/9x+15)
2/9x+15=x-2/9x-15
2/9x-x+2/9x=-15-15
-5/9x=-30
x=30/(5/9)
x=45