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)
2*(2-1*a) = -6 // + 6
2*(2-1*a)+6 = 0
2*(2-a)+6 = 0
2*(2-a)+6 = 0
10-2*a = 0
10-2*a = 0
10-2*a = 0 // - 10
-2*a = -10 // : -2
a = -10/(-2)
a = 5
a = 5
| 7(2+4x)=-154 | | 5(-10-4k)=-110 | | 6(2n+2)=84 | | 5(1t+9)=100 | | 2(6-6w)=-108 | | 6(-3n+10)=-102 | | 7(-7-3n)=182 | | X^2+3X-2=7 | | 7(-2x+7)=63 | | 5(1b+8)=85 | | 2(8+d)=40 | | 3(7x-6)=-39 | | 4*b-12=0 | | 3(-3b+10)=75 | | 6(10-5a)=-120 | | 3(-3n+10)=-33 | | 3(3-6w)=-27 | | 7(3m+9)=231 | | .3x-7=8 | | 1/3x-7=8 | | 4(-7w-8)=-172 | | 6(1+3t)=132 | | 2(9+5m)=48 | | 7(-7a+10)=-77 | | 5(-7t+6)=-40 | | 3(-5n+2)=-24 | | 2(1t-6)=-32 | | 4(4+6w)=256 | | 7(5m+3)=-294 | | 4(7w+6)=276 | | 6+x/5=31 | | 6(3n+4)=222 |