x + 10 = 23解 x = 20 - 10x = 13检验：把x = 13代入方程,左边 ＝ 13 + 10 ＝ 23 右边＝ 23所以,x = 13 是方程 x + 10 = 23的解1/5 x + 5 = 35解 1/5 x = 35 - 51/5 x = 30 x = 30×5 ＝ 150检验：把x = 150代入原方...