Idk this one but you’ll find it eventually
You have 1/5x and 4/5x if you add these you get 5/5x or 1x
The left side simplifies to:
x +9 > -11
Subtract 9
x > -20
After combining like terms:
-0.7k + 1 = 7.8
Subtract the 1 from both sides:
-0.7k = 6.8
Divide by -0.7 from both sides:
k = -9.7142, simplified is -9.7
Checked Answer:
-0.7(-9.7) = 6.79, simplified is 6.8