If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12x-9=10x+21
We simplify the equation to the form, which is simple to understand
12x-9=10x+21
We move all terms containing x to the left and all other terms to the right.
+12x-10x=+21+9
We simplify left and right side of the equation.
+2x=+30
We divide both sides of the equation by 2 to get x.
x=15
| X^3-2x^2+x-1/x-1 | | -5=-4m | | 10+4x=50/x-10+2x | | 2x+x+3x=96 | | (10x-20)=(6x+8) | | y+-5=2.5(x+-2) | | (v^3+6v^2+6v-9)/(v+3) | | 5y+10= | | 7.2y-0.33=4y-0.33 | | 9x^2-81/2x-6 | | 5a=-195 | | 2.3(3x+3)=3x+3.1 | | (x+1)(x+3)(x+5)(x+7)+15=0 | | 2.4k+9=5.8 | | logy=2.8 | | y/5 | | 11x=8x+120 | | 5*x^2+2*x-50=0 | | -2d-3(d-3)=-27+4d | | 2(2x+4)=25 | | 292x+40=25 | | 4x+3x+227=6x+227 | | 6x^2=19x-3 | | m/4-4=18 | | 2x+2(90+x)=1680 | | 7x-3=2x+15 | | 8x+3=2x+19 | | 3x-30=x | | 8p=200 | | T/4=-9 | | 2/y=10/60 | | log(0.8)=-.0906 |