If it's not what You are looking for type in the equation solver your own equation and let us solve it.
13+2c=9
We move all terms to the left:
13+2c-(9)=0
We add all the numbers together, and all the variables
2c+4=0
We move all terms containing c to the left, all other terms to the right
2c=-4
c=-4/2
c=-2
| 8(4–x)=7x+2 | | 8/16=11/x | | 2x-5+x=4x-5-x | | 6(-x+3)-2=22 | | 6*x+14=41 | | 20+x=-6 | | -6w+1=-7w | | (3x)+(4x+19)=180 | | 5x-63=x/2 | | 2)x+10)=60 | | 122=-6n+2-14n | | -9=6-5/6r | | 9(x-5)-6=-51 | | 6x+20=3x-20= | | 4|2x-4-9=39 | | 15x+0.17=40 | | -6x-4=3x+50 | | 8x+2=-5+6x+19 | | 10-5j=-6j | | -6(-x-3)-2=22 | | 60+x+70=180 | | 7x+9=-3x-11 | | -3+x+35+50=180 | | 12+20=-4(9x-8) | | 4|2x-4|-9=39 | | 7(x+1)=2x | | -x+6x=30 | | -q-3=9 | | 6)4x+1)=78 | | 15+2.5x+10=3x | | 4b-6=2(b-1)+b | | 6+23x=9 |