If it's not what You are looking for type in the equation solver your own equation and let us solve it.
220=-10k
We move all terms to the left:
220-(-10k)=0
We get rid of parentheses
10k+220=0
We move all terms containing k to the left, all other terms to the right
10k=-220
k=-220/10
k=-22
| x5/30-6/30=7/30 | | 90=42+x | | 25-3p/2p=4p=0 | | x=434 | | 4(2-2x)-2=3(8-3x)-5 | | 93,600+1.50)x= | | x+x/2+x-55=396 | | x/9+5=6 | | a+7a=5+3a | | 2x=4.25 | | 7x-8x=2x+12 | | 2x+5/x=100 | | 4x-2=×+10 | | 4x-2=×-10 | | 4r×r=4r | | 6-r+2r=2r-3r | | –36+25^x2=0 | | 4x-1=×+10 | | 2m-7=3m-1 | | s^2+3s=-3 | | -7=u+8 | | 4x^-0,5=1 | | 2x+5=342 | | 6x=90+x | | -3z(2z-2)=-6(z^2-2)-(3)(2) | | 2x+3+63=180 | | 3z-13=-1 | | 10x²+90x-100=0 | | 3x/4=+x/3-2=1/2-x | | -3z(2z-2)=-6(z^2-2)-3(2) | | -3x+2•7=-16 | | 17x-4=12x+16 |