How do you solve 6= 2| 7c - 70| + 6?

1 Answer
Oct 15, 2017

c=7

Explanation:

6=2abs(7c-70)+6

0=2abs(7c-70)

0=abs(7c-70)

Split into two equations

0=7c-70 and 0=-1(7c-70)

Solving the first one, we get:

70=7c

c=7

Solving the second one, we get:

0=-7c+70

7c=70

c=7

So, our only solution is c=7