If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-45=-9k-9
We move all terms to the left:
-45-(-9k-9)=0
We get rid of parentheses
9k+9-45=0
We add all the numbers together, and all the variables
9k-36=0
We move all terms containing k to the left, all other terms to the right
9k=36
k=36/9
k=4
| -21=d/31 | | 15+2p=1 | | u/12=23 | | h+35=969 | | y/31=-10 | | p-17=3 | | X+17/3-20x/2=5x-28/2+9 | | r-62=37 | | w-9=6 | | 8=b^2 | | 4^(2x+5)*6^(3x-4)=100 | | X^2-9x+(81/4)=(1/4) | | 4x+12=5x-18=180 | | 0.6x+0.8=0.28x+1.12 | | F(2)=4x+(-5) | | 10(3-x)=15 | | 5x+4x+1=100 | | 9/21=36/n | | R6.233=1.656D+1.188d | | 4x=90+3x | | R6.233=1.656(x) | | -2d+12=-4 | | 2(5x)=17 | | x+30+68=180 | | 2/3(9a+6)=23.6 | | 0.75x+x=100 | | 0.4(x-20)=830 | | y/7=11/7 | | -8+3x=-2+2x | | 3z+14=180 | | -2y/5=-4 | | u+6.4=8.65 |