Answer:
B (-8.5)
Step-by-step explanation:
To start working, times everything in parenthesis by 2
2 times x = 2x
2 times 3.5 is 7
Now that you have that, re-write the equation
2x+7=-10
subtract 7 from 7 and -10
you get 2x=-17
divide both sides by 2
x=-8.5
Hope this helps! :>
