17(2-3y)-5(12-y)=8(1-7y)求y的值
问题描述:
17(2-3y)-5(12-y)=8(1-7y)求y的值
答
17(2-3y)-5(12-y)=8(1-7y)
34-51y-60+5y=8-56y
-26-46y=8-56y
10y=34
y=3.4