If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
5*(7-(2*n)) = 155 // - 155
5*(7-(2*n))-155 = 0
5*(7-2*n)-155 = 0
5*(7-2*n)-155 = 0
-10*n-120 = 0
-10*n-120 = 0
-10*n-120 = 0 // + 120
-10*n = 120 // : -10
n = 120/(-10)
n = -12
n = -12
| 3(-7+6b)=-21 | | -2(2)+8=y | | 4(7x+5)=216 | | 7(5n+9)=-7 | | 7(4n-6)=238 | | 6(9+5a)=84 | | 3(6w+6)=234 | | 5(5-5a)=-125 | | 7(-4-n)=-70 | | 3(2b-7)=-27 | | 5(-9+6b)=135 | | 6(4a-3)=6 | | 3(2-2x)=-60 | | 4(-2)+10=2y | | 2x=21+x | | 4(0)+10=2y | | 5(2x+1)=-75 | | 7(3w+6)=273 | | 7(-5w-2)=-294 | | 2(1k-3)=2 | | 4(2)+10=2y | | 3(10+6k)=30 | | 7(6x-10)=-196 | | 6(10-6x)=-372 | | (4b+3)*(3b-7)=0 | | 45*x=56 | | 2(1+5k)=22 | | 5(-7-3k)=-125 | | 1/2(e-6)=1/4(e+6) | | 5(-8-7b)=-285 | | 4(3+2m)=60 | | 4(1w+4)=36 |