If it's not what You are looking for type in the equation solver your own equation and let us solve it.
9x+12=39x=
We move all terms to the left:
9x+12-(39x)=0
We add all the numbers together, and all the variables
-30x+12=0
We move all terms containing x to the left, all other terms to the right
-30x=-12
x=-12/-30
x=2/5
| 1/2x+7=4x+5 | | 1/2x=-3x | | -5x=-6x | | 4b-7=b+2 | | y=1-y | | 4/2*x=8/4 | | 100*t=7.5278 | | 2x-1(5x+7)=4-2(-7-x) | | (12+x)x=1728 | | 25x2=64 | | -x-9=-3x-3 | | 2x+17=-2x+25 | | 13x-3=6x+4 | | 11x-10=5x-40 | | -7x-2=-3x-18 | | 4/5x+9/5=5 | | X^3+2y=6 | | M^4-13m^2+42=0 | | (4x=3)^2-8x=6 | | C=8.4c÷(2·2) | | 3x+18=90-5x | | Y³-3y-52=0 | | 10+2x-2=16 | | 3=-7/v-5 | | Y=2/1x+24 | | 2x=2.0=+1.2 | | 2x+1.7=x=1.4 | | 5/0.1x0.22=9.9 | | 7x-2.0=-4-5.3 | | 12×2=x | | 9=2x+2 | | 5x-(1/3-x)=3/4x |