If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-0.9x=126
We move all terms to the left:
-0.9x-(126)=0
We move all terms containing x to the left, all other terms to the right
-0.9x=126
x=126/-0.9
x=-140
| 105=5x+5(-3x+3) | | 8n-5+4n=5 | | X+10=3x+3 | | 3(4x+7)=-21+30 | | 15-3x=30-2x | | 3x-2/x=x | | 144•12^-9=12n | | x+6+3x=149 | | 20=7x-6+7x | | -9914-7x)=1071 | | 10m+3=10 | | -1/2-1/3v=3/7 | | -86=-10k+4 | | 7x=60+2× | | 11/5=113/14a | | |4m+6|=|m| | | Y=0.35x | | 3m+10=10 | | 3m+3=10 | | .4x+5=1.2x-2 | | 2x+5(-4x-11)=53 | | -7+7n=28 | | 21x+5+22x=x | | 5x+50+7x-14=180 | | 12x=2/3 | | 7n-40=2(7n+1) | | 95=9x-5 | | |4m+6|=|m|’ | | 180=8x-12 | | 7(6-2a=5(-3a+1) | | 5x+9=2x+5 | | 12+10x=8x+96 |