Question

I need help, could someone help me solve this? Also please explain so I can do other ones on my own. Thanks in advance!​

Answer 1

x = 9

Explanation:

Solving for
`x` the equation

First with add 6 in each term in the equation in order to solve for x

6+3x+(-6) = 21+6

3x = 27

Then we divide both term for 3

3x/3=27/3

resulting

x = 27/3

Reducing

x = 9