If it's not what You are looking for type in the equation solver your own equation and let us solve it.
31=2x=15
We move all terms to the left:
31-(2x)=0
We move all terms containing x to the left, all other terms to the right
-2x=-31
x=-31/-2
x=15+1/2
| 12x²-360=0 | | -3(5x-1)=7x+25 | | -2-8(7x+7)=-282 | | 18f+10-11f+8=11 | | x=5^12.5 | | 21÷2=5n | | 6y+7–3y+3=20 | | a(40)=1(0.25)^40 | | D^4-16)y=0 | | -4-7√2x-1=17 | | 4+2(-1+7x)=7x+30 | | 2(2x+2)+4(3-x)=16-2x | | x÷7-2=4 | | 3x+30+4x-5=180 | | x+104+38=180 | | x+4=¾ | | 8/v=1/2 | | 7n+3.2n+6.5=17.9 | | 8/v=2/4 | | 4(x-3)+3(2x-1)=9 | | z-45+z-47=180 | | 0.r=0.5 | | z+z-47+z-45=180 | | (87+90+89+x)/4=90 | | 2x–4=32 | | -7.5x=90 | | s+18+4s+16+40=180 | | 1/6x=-1/12 | | 7b+25+78+63=180 | | 98=2+6(5x+6) | | 56+72+13b=180 | | y12=2;y=24 |