Answer:
k = 10.5 or k = - [tex]\frac{21}{2}[/tex]
(solved for k)
Step-by-step explanation:
1. Add the numbers (-2k + 6 + 3 = 30) --> (-2k + 9 = 30)
2. Move the constant to the right and change it's sign
(-2k + 9 = 30) --> (-2k = 30 - 9)
3. Subtract the numbers (-2k = 30 - 9) --> (-2k = 21)
4. Divide both sides by -2 to isolate 'k'. (-2k = 21) --> * k = - [tex]\frac{21}{2}[/tex] *
Hope this helps :)