math
posted by Kris on .
Help!
Solve:
1. 3x + 15 = 0
2. 6x + 18 =0
thanks!

I'll do the first one.
3x + 15 = 0
3x = 15
x = 5
I'll be glad to check your work for the second problem. 
2. 6x + 18 =0
6x/6 = 18/6
x = 3?? 
x = 3
You're on the right track, Good job! 
Almost right.
But you forgot to subtract 18 from the right side of the equation.
6x + 18 =0
6x/6 = 18/6
x = 3
To check it, substitute 3 for x.
6(3) + 18 = 0
18 + 18 = 0
That's it! 
thank you

You're welcome.