[tex]-2 = k+7\\-2-7 = k\\-9 = k\\[/tex]
Whenever you move from the left to right or right to left of any linear equations, you have to switch from plus to minus or multiply to division.
Answer:
k= -9
Step-by-step explanation:
-2= k+7
-k= 7+2
-k = 9
k = -9
