198k views
4 votes
30 ponts
9x+1-7x=20 what does x equal?

User Darnell
by
3.8k points

1 Answer

5 votes

Answer:


x = 9.5

Explanation:

Combine like terms


9x + 1 - 7x = 20 \\ 2x + 1 = 20

Now simply solve


2x + 1 = 20 \\ 2x = 20 - 1 \\ 2x = 19 \\ (2x)/(2) = (19)/(2) \\ x = 9.5

hope this helps you.

User Ramalingam Perumal
by
3.1k points