If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(-5)-k=(-12)
We move all terms to the left:
(-5)-k-((-12))=0
We add all the numbers together, and all the variables
-1k+7=0
We move all terms containing k to the left, all other terms to the right
-k=-7
k=-7/-1
k=+7
| c2=1,728 | | (6x-5)-(4x-2)=7 | | 5(x−6)+6=7(x−8)x | | Y=-3x+70 | | 2(x-3)-2(2x-3)=2x+2x | | 57°(4x+17)=180 | | -3(3+3x)+x=-x-16 | | 8x-28x+42-22=0 | | {3x-1}={2x+1} | | 3x+x+3x-8=97 | | 41°+59°=x° | | 6(-2x-1)+2x=-86 | | 2x + 3= 13 | | |x-3|-8=-1 | | 6x-8=2x+2+2x+2 | | A=q+Q | | 5x+1.5=35 | | -|-3n-10|+4=-4 | | -4(-x-4)=4x+6(2x+6) | | 5x+35=5x-25 | | 8(x+3)+3=-13 | | 7.1x+1=6.1× | | 5+5(2+4a)=200 | | 2x+22=3x+1+3x+1 | | 2(-7+10)-2(1+10r)=-r+2r | | -(2b-2)=-2(1+3b) | | 2x+3+2x+x=28 | | -(2b-2)=-2 | | -1/3-1/12b=-1/2 | | 7(7x+5)=21x-9 | | 2x2+8x-252=0 | | 21,000=3400t+600. |