if -1/7x - 6 = 34, find the value of -2x + 3

Question

a) -280
b) -77
c) 395
d) 563

Can you pls explain it for me too

Answer 1

First solve the given equation for x.
-1/7 x = 40
x = -280 is the answer. Do you see why?

Next step:

Compute -2x + 3.
That would be -2(-280) + 3.

Which of the choices is that?

Answer 2

oh, its d!

thanks so much