Question

30 ponts
9x+1-7x=20 what does x equal?

Answer 1

`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.