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)
3*(x-3) = 78/13 // - 78/13
3*(x-3)-(78/13) = 0
3*(x-3)-6 = 0
3*(x-3)-6 = 0
3*x-15 = 0
3*x-15 = 0
3*x-15 = 0 // + 15
3*x = 15 // : 3
x = 15/3
x = 5
x = 5
| -8y=-32 | | 3.5+0.25b=0 | | 12x^17-30x^13/3x^4 | | 7x+7/3x^2 | | x=4*-5+6 | | 8k=6k-20 | | 34+(-29)= | | -(4y+6)+3y=-1 | | 1/6y=-6 | | 2h+8=2-n | | 4x/7-6=x | | 6sin(x)+5=-5 | | 0.02(y-8)+0.04y=0.16y-0.07(10) | | 3(2x+3y)= | | factor(8z-3)(z+4)-(8z-3)(z-3)= | | 4w-6wusen=5 | | 6(9)-9y=54 | | 6(9)+9y=54 | | 9c-6=15 | | -15=p+15-10p | | 2t^2-12t-9=0 | | y=0.0x^2-x+1 | | 4(-3y+16)=-13 | | 3/2u-2/5=-u-4/5 | | 3(3x+8)-9=9x+15 | | x^2+30x+450=0 | | 2/7x+5/7=-3/7 | | 4x^2-x=663 | | 67+2.5c=92 | | 3(3x+1)-4x=13 | | 2x+6x=2x | | -2(t+8)=12 |