(1+6*X) / (27*6) = (1+9*X) / (23*9) 帮我解下x 等于多少
问题描述:
(1+6*X) / (27*6) = (1+9*X) / (23*9) 帮我解下x 等于多少
答
(1+6*X) / (27*6) = (1+9*X) / (23*9)
(1+6*X)* (23*9)= (1+9*X)(27*6)
等式两边同除9:23(1+6X)=18(1+9X)
23+138X=18+162X
138X-162X=18-23
-24X=-5
X=5/24