How do you solve |6-y|=8|6y|=8?

1 Answer
Aug 3, 2017

y_1y1 = -2
y_2y2 = 14

Explanation:

First of all separate the two absolute equations as if they were two separate equations (one positive and one negative)

6-yy=8
6-yy=-8

Then, you solve equations. Solve the first one

=> -y = 8-6 => -y = 2 => y = -2y=86y=2y=2

Then, the second one :

=> -y = -8-6 => -y = -14 => y = 14y=86y=14y=14

So the two solutions are

y_1 = -2y1=2
and
y_2 = 14y2=14