If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-3+12=4x
We move all terms to the left:
-3+12-(4x)=0
We add all the numbers together, and all the variables
-4x+9=0
We move all terms containing x to the left, all other terms to the right
-4x=-9
x=-9/-4
x=2+1/4
| -40=2(6n+4) | | 0.6x-8=2.2x-24 | | 5y+5=(y+4)-15 | | 10=u/3-10 | | 6-x=-2x+8 | | 3.2=5x+2.5x | | z-1.2=1.8 | | 3.2=5x+2.5 | | 32.4=5.4b | | 2x=1-8 | | 0.5x=1.5^x | | -6v+16=4 | | 8x^2-48x=104 | | f(8)=-26/8+7 | | 2a-(4a-1)=-5-3a | | 18=5-g | | 7y=60.9 | | 20+(x+120)=180 | | -15.49+18.3d=19.27+19.1d+7.1d | | x/7=17/42 | | 6x/5=9x-4 | | 3.73+14.8q=18q+10.13 | | 9+14j-8=19+13j | | 3(×-7)=x | | -20s=-19s-12 | | 24x-4=8 | | 4012=34(p+40) | | 19b-18=16-15b | | 3-5v+2=-9-7v | | 5y+2y=63-2.1 | | -5w-20=16w-19w+20 | | 12b-25=4b+7 |