If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x-12.4=-20.5
We move all terms to the left:
x-12.4-(-20.5)=0
We add all the numbers together, and all the variables
x+8.1=0
We move all terms containing x to the left, all other terms to the right
x=-8.1
| (x-1)²=0 | | x+106+125=180 | | 2x+5=5x-10-3x | | -2m-40=2-8(m+6) | | 6x+3=8+7+2x | | h/6-1=−3 | | 7(3+n)=98 | | 2x+3+18=5x-9 | | x/1.2=0.55 | | x-3.65=500 | | -9/6=x/10 | | 4x-2x+5=3x-x+6 | | 4d−3=13 | | 13–3y=6y–59 | | 6l=48 | | 13x-1=13/9x+27 | | x2-4=140 | | 8+4(2x-7)=-2(8x+3)-38 | | -4(1.5x2.83333333333-0.5)=-15 | | 4/t=2/25 | | (20x-2)°=(13x+19)°=4x° | | 2x-7=13+2x | | .25+x=2.25 | | 60+2x+18+10x–10=180 | | 90+(2x=40)+(3x-10)=180 | | t/–24=14 | | -3x-11=x-6-4x | | 9(n-2)=-63 | | 24-7(5x-3)=-5(6x+3) | | 24=u/14 | | (c)=c-0.08c | | 8x-7x=x8 |