How do you solve #3x - 36 = -21#?

1 Answer
Nov 13, 2015

#x = 5#.

Explanation:

We start with:
#3x - 36 = -21#.

To solve for #x#, we have to leave it alone. Step-by-Step:
We first pass the #-36# to the other side, adding:
#3x = -21 +36#,
#3x = 15#.
We now divide by #3# on the right, as on the left it is multiplying:
#x = 15/3#,
#x = 5#. This is the final answer.

Hope it Helps! :D .