If it's not what You are looking for type in the equation solver your own equation and let us solve it.
s in (-oo:+oo)
-((7/2)*s)-12-7 = 0
(-7/2)*s-12-7 = 0
-7/2*s-19 = 0 // + 19
-7/2*s = 19 // : -7/2
s = 19/(-7/2)
s = -38/7
s = -38/7
| 3x+7x-10+90=180 | | X(8+7)=9x | | 0=-x^2-10x | | 7(4)-5x=3 | | p(t)=-3t^2+18t-4 | | 4-5(1-2x)= | | 20c^2-39cr+18r^2=0 | | (6n-2)-(8n+7)= | | 14x^2+70x-49=0 | | 2y(8y+7)=15 | | 252=172-U | | 5k+7=k+11 | | 6x=(49-x) | | (2/3x)(y)=150 | | 3x+1+2x-3+9x=180 | | 2xy+9x-x^2y-18=0 | | 82+82+63+63+2x=360 | | 9x-6(x-4)= | | 50=19t+15t^2 | | -16=x/12 | | 9=7/2x | | f(x)=3*sin(x)-2*cos(x) | | 40-10+5x+90=180 | | -(7+3x)=5x | | 4y^2-28y+48=0 | | 55+x+44+90=180 | | 6×6/7= | | -(-9+2b)-11= | | x^(3/4)=12 | | g(4)=-4(-4) | | 4v=-36 | | 75=x*y*2/3 |