If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
x/3+x/6 = 15 // - 15
x/3+x/6-15 = 0
1/2*x-15 = 0 // + 15
1/2*x = 15 // : 1/2
x = 15/1/2
x = 30
x = 30
| 68=2(12+x) | | 43=8x-5 | | .20e-1=.333 | | 5(1)+y=12 | | -5(-1)+y=12 | | (9b-2)-2(4b+4)=-7 | | 4x+1/2=5/6 | | d=(F+2)/p | | P^2+13p=-50 | | 3(-1)-y=10 | | X^2=16-4 | | C^2-10c=-21 | | 3/4x=12-x | | x^2+21x+147=0 | | 2y+16=16 | | 12x^2-16x+16=0 | | (n-15)*(15-n)= | | 100=x(10)+100+60 | | 0.0163212q^2-551q-160000000=0 | | 1.4=30+x | | 31x-20+3x+2=38 | | 179/7-76/7 | | 3m^2+m-10=0 | | 3m^2+20m-10=0 | | 85x+14=42x-24 | | (9n)*(15-n)= | | 40d+7.50d=12.50 | | 7n=2n+35 | | 3m^2+m=0 | | (x-7)(x-4)=80 | | 3x+4=2x-2 | | (n-15)*(3n^5)= |