penyelesaian persamaan -5|x-7|+2=-13

-5|x-7|+2=-13
-5x|x-7|+2-2=-13-2
-5x|x-7|=-13-2
=-(13+2)
=-15
-5×|x-7|÷(-5)=-15÷(-5)
|x-7| = -15÷(-5)
= 3
x-7 =-3
x = 3+7
=10
x-7 = -3
x = -3+7
= 4
X1 =4 , X2 =10