If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-140=12x
We move all terms to the left:
-140-(12x)=0
We move all terms containing x to the left, all other terms to the right
-12x=140
x=140/-12
x=-11+2/3
| 8x-4+3x16=90 | | m+3/3=-2 | | k-7/5+2=k+8/10*5 | | 2(4x)+(5x-8)+(5x+2)+96=540 | | 49g+8)=7+4g | | 75(x+52)+15=180 | | 110=4(1.5w) | | 2(2x+4)+1=4x+9 | | 5x+2+3x-8=10(2x-5) | | 7(-2k-4)-6=7k-20 | | 8x-4+3x16=180 | | -24=-2+2x | | 12n+13=121 | | 5/6q−1/3q=25 | | 8w=-4w+84 | | 12n+13=21 | | 4x=28=29-5x | | 8x+16=5x+8 | | 65=16x+1 | | 12+13n=121 | | -4r=-3r-17 | | 9/12x+8=4/12x-7 | | -k-10=8k+8 | | X+x/2+x/4=35 | | 12+13n=21 | | -1+4p=11 | | 10n+n-10n=7 | | 2/9s=-6= | | 8x+16=4x+7 | | 2(5/2+x)-2=4(2x-9/4 | | 3(2x+1)+x=–36 | | 8p+60=-2p |