Question

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

Answer 1

Answer:

$x = 9.5$

Step-by-step explanation:

Combine like terms

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

Now simply solve

$2x + 1 = 20 \\ 2x = 20 - 1 \\ 2x = 19 \\ \frac{2x}{2} = \frac{19}{2} \\ x = 9.5$

hope this helps you.