If it's not what You are looking for type in the equation solver your own equation and let us solve it.
15=c/3+13
We move all terms to the left:
15-(c/3+13)=0
We get rid of parentheses
-c/3-13+15=0
We multiply all the terms by the denominator
-c-13*3+15*3=0
We add all the numbers together, and all the variables
-1c+6=0
We move all terms containing c to the left, all other terms to the right
-c=-6
c=-6/-1
c=+6
| 4(1-2b)+7b-10=b | | 2(2a+3)-4(3a-6)=15 | | -9x+18=-3(x-4) | | -6+12x=2+6x | | x+4x+5x=300 | | -6n+6=-5n+11 | | 9x+–13x−–10x−7=–1 | | m-9=-13= | | –7x+3=–8x | | 6m−13m=14 | | -6+5x=2+6x | | 2(2a+3)-4(3a-6)=1 | | 3t+1=3t | | 2(v+7)=18 | | -9(x+2)=-6x-12 | | 6x(7-2x)=0 | | -10x-6=-4x | | 5=z/2+3 | | 4y+5=4y+13 | | -4/5x+2-x=48 | | 1-x-5/3=x+2/5-6x-1/15 | | -9=-6x+3(x-7) | | 6=u/2+3 | | 3x+5=12+4x/2 | | 3.5=25x | | 3.4+10m=8.38 | | 5+7n=-15+3n | | 38(-3c+4)=2(1c=+5)+1c | | -5v+2(v+5)=1 | | 4x-2(3x-2)=6x+8x=-0.5. | | 9-4.5-0.6x=9.3 | | 3(2x-6)=-36+12 |