If it's not what You are looking for type in the equation solver your own equation and let us solve it.
w in (-oo:+oo)
5*(3*w-9) = 90 // - 90
5*(3*w-9)-90 = 0
5*(3*w-9)-90 = 0
15*w-135 = 0
15*w-135 = 0
15*w-135 = 0 // + 135
15*w = 135 // : 15
w = 135/15
w = 9
w = 9
| 3(-8-2b)=-54 | | 5(-5k+1)=155 | | 4(6k+4)=-8 | | 3(4-7m)=-177 | | 4(6+2d)=64 | | 5(-7t-7)=-420 | | 3(-6-7m)=-39 | | 5(4-6d)=-40 | | 3(-6+6k)=126 | | -0.6x^7/0.3x^5 | | 3(-2m+5)=-39 | | 3(-1x-5)=-24 | | 7(-3+2t)=7 | | 5(7-5k)=135 | | 2(-7m-1)=-30 | | 7(5+3t)=-70 | | 4(1+5a)=-236 | | 2(-3a+6)=18 | | 2(3w-6)=-24 | | 4(7d+2)=64 | | 5(-5-6x)=95 | | 6(4w-4)=120 | | 5(8+6d)=130 | | 6(-2w-7)=30 | | 6(-7-m)=-108 | | 6(1m-3)=24 | | x^3+10x^2+32x-32=0 | | 7(3k-1)=161 | | 6(9+t)=126 | | -5+7x=5x+11 | | -5m+9=-6m+10 | | -6a+1=6a-35 |