Question

11400+x+5x=18600 решить уравнение

Answer 1

11400+6х=18600 6х=18600-11400 6х=7200 х=1200

Answer 2

11400+x+5x=18600
11400 + 6*x = 18600
6x+(11400-11400)=18600-11400
6x=18600-11400
6x=7200
$\frac{6x}{6} = \frac{7200}{6}$
$\frac{6}{6} =1$
$x= \frac{7200}{6}= \frac{6*1200}{6*1} = \frac{6}{6} *1200=1200 \\ x=1200$
Ответ:1200