Answer:
k = 35
Step-by-step explanation:
Write the equations with the given value of x, then solve for k.
- -2(-8.4) +y = k
- 0.5(-8.4) +y = 14
Subtract the first equation from the second:
(0.5)(-8.4) +y) -(-2(-8.4) +y) = 14 -k
-21 = 14 -k . . . . . simplify
k = 14 +21 = 35
