What is the question ? Are you looking for the value of 'k' that makes the statement true ?
It may be found as follows:
-k - 6 - 7k + 20 = -2
Clean up the left side:
-8k + 14 = -2
Multiply each side by -1:
8k - 14 = 2
Add 14 to each side:
8k = 16
Divide each side by 2:
k = 2
y=2
320 tolerance +/- 20 ? Did I get it right?
-3
20
2
20 = 400
2+2+2+10+5+5+5+20+20+20+20+20+20=151
2
I come up with 20.
10 plus 10 equals 20 20 divide by 10 equals 2 2 plus 10 equals 12
It equals 2 hours and 2 minutes.
y=2
x = 2
320 tolerance +/- 20 ? Did I get it right?
6-4-8-2=20 is the answer
-3
20