Question

解方程|x-1|/5-2|x-1|/3=-2/15|x-1|-3

Answer 1

|x-1|/5-2|x-1|/3=-2/15|x-1|-3

乘以15得

3|x-1|-10|x-1|=-2|x-1|-45

-7|x-1|+2|x-1|=-45

-5|x-1|=-45

|x-1|=9

x-1=±9

x=10或-8