If you followed those instructions, even without the typos, I'm sure you were confused!
3x + 9 = 7x - 11
subtract 3x:
9 = 4x-11
add 11:
20 = 4x
divide by 4:
5 = x
3x + 9 = 7x - 11
How do I solve this?
You said subtract three x from each side, then all eleven to both side then divide each side by 10?
I'm confused...
2 answers
thanks!