If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
6*(7*a+9) = -366 // + 366
6*(7*a+9)+366 = 0
6*(7*a+9)+366 = 0
42*a+420 = 0
42*a+420 = 0
42*a+420 = 0 // - 420
42*a = -420 // : 42
a = -420/42
a = -10
a = -10
| 3(2-3m)=6 | | 3(7w-8)=81 | | 5(-4n-1)=-25 | | 7(2-4n)=-266 | | 2(4-2n)=-40 | | 9x^2=81x^2 | | 7(-1d+9)=-21 | | 3(-1+1x)=-6 | | 5(9+3x)=150 | | 2x+3X^2=1 | | 75x+566=4587 | | 7(2a+7)=105 | | 6(-6+4t)=252 | | 3(7+4n)=93 | | 2(6+3w)=78 | | 6(-5t-4)=-24 | | 2(2+4w)=-52 | | 6x+25=36 | | 2(8-4d)=-64 | | 3(6b-1)=51 | | 2(-8-4k)=-80 | | 2x-5*2+x*2=28 | | 6(-5-3b)=96 | | 6(-4b-7)=-138 | | 3(-6-4b)=-30 | | 7(3-5t)=336 | | 3(9-5w)=-123 | | 2(-5x-6)=28 | | 6(-3k-1)=-186 | | 4(1-7w)=4 | | 5(3+6n)=75 | | 4(-4k+10)=88 |