If it's not what You are looking for type in the equation solver your own equation and let us solve it.
d in (-oo:+oo)
(2/3)*d+6 = 66 // - 66
(2/3)*d-66+6 = 0
2/3*d-60 = 0 // + 60
2/3*d = 60 // : 2/3
d = 60/2/3
d = 90
d = 90
| -3x+4x+5=1 | | graphy-7=0 | | y=6/7x | | iz^2-2z-2i=0 | | 5x-3-4x=-5-1 | | 3x+2y+cz=4 | | .8333(6x+12)+1=.6666(9x-3)+4 | | 5(4x+1)=10-(3x-3) | | 6(3x-1)=3(6x+8) | | 1-14a=16a | | 4x2(2)+3x/2x-3 | | 5x-4x-7=4-11 | | 250-2x=2858 | | 5/8y+1 | | 8r^2+32+2=7r^2 | | X^2+19x+18=0 | | -1=5x+4-4x | | 45-2=2x-3 | | -13-3=8-10x | | 3u+4u=21 | | 5x+10=-2x-18 | | 2(a)=1.5(15) | | 11/1331= | | 6x-30=3x-1 | | x+(x+2)+(x+4)+(x+6)+(x+8)=230 | | 9x+2-8x=-1 | | 0.6x-0.2(70+x)=0.086(70) | | 4a+3b-a-5b= | | 9p-2=-74+p | | -8y+8=4(y+8) | | (-3+4k)-(-2+7k)= | | 0.5x+7=12 |