If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2a-5=31
We move all terms to the left:
2a-5-(31)=0
We add all the numbers together, and all the variables
2a-36=0
We move all terms containing a to the left, all other terms to the right
2a=36
a=36/2
a=18
| 5400+90m=3800+13m | | -12a+-24=3a-a | | 20m-6=m | | x2+8=14-X | | 11-7x=73 | | 8x+36=2x-14 | | 9-2j+7j=-7+7j | | 7.7=k/7 | | 14+7c=49 | | 6d=152 | | (3x-17)/4=-2 | | 8+2x+3-x=2x+2 | | (8.2x9.4)10.7=V | | V=(8.2x9.4)10.7 | | .25p=1.25 | | -6w-4)+8w=2(w+9) | | 9÷(2/3)=x | | 16e=160 | | w+4.48=8.79 | | 2(2x+10)-8=-2(14-3x) | | w-4.94=9.67 | | -4(x-8)=4x-48 | | 3x+3.25=7.77 | | u-6.17=2.5 | | (2n-5)(n-6)=0 | | 7+4x=63-10 | | 1,10,000x15= | | Y+7+3y-79=180 | | 9y-3y+15=80+25 | | x+6(x-6)+2(2x+28=180 | | 14.2d=28.4 | | b−47 =−32 |