If it's not what You are looking for type in the equation solver your own equation and let us solve it.
31-2x=211
We move all terms to the left:
31-2x-(211)=0
We add all the numbers together, and all the variables
-2x-180=0
We move all terms containing x to the left, all other terms to the right
-2x=180
x=180/-2
x=-90
| 3x-41=2x+15 | | 10x^2=4+3x | | 3x-41+2x+15=180 | | 3n+4n=8+4n=12 | | 4(5)+4(2x)-5=3(3x)+3(7) | | 6x-30=2x+70 | | 2x-26=92 | | -x/6=-40 | | 12x=3+-7 | | 70=900+40x | | 3n+4n=8+4= | | 1253=900+40x | | 5x+11+2x-3=0 | | 4x-48+94=180 | | 698=900+40x | | 40=y/4+11 | | 2/3+7=7-x | | 5p-15=90 | | (5x-8)=(5x+10) | | 9+4=4a+2 | | 2(t=3)=0 | | 11(5.45)+7.33x=6.14(11+x) | | C=900+40x | | 2x-29+83=90 | | 4x−18=64+2x | | X+(x+2=-88 | | S-3s=s+12 | | (7x)+x=56 | | 5(y+3)=5y+13 | | 62x-1+61x+1=180° | | 7x+5-6x+7=180 | | (7x)-x=56 |