If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(11/2)*x+x+x+15 = 0
15/2*x+15 = 0 // - 15
15/2*x = -15 // : 15/2
x = -15/15/2
x = -2
x = -2
| 6n-4+2n=-28 | | 5(10x+7)=50x-8 | | 2n*20=4*70*5 | | -36+26= | | 6y=8-9+6x | | 5(a+7)-7=9 | | 7-7r=28 | | 3/4p-1=-2 | | a=4h | | 72x-108=12(6x-9) | | -6+(-8)+(-12)= | | 240=(x+2)(x)(3) | | 3(-x+2)=12 | | -4a/5-2=8 | | 54+3y=-3y | | 5+10/11x=35 | | (0.25x)-6=2 | | -46+(-31)= | | 5(y-3)/4=2y+3 | | 33-7x=x+9 | | 2x^2+120x-1179=0 | | 2x^2-x=-9 | | 3(-2+2)=12 | | Y=1/21x-121 | | -3=0.7x-2(0.4x+1) | | -6(-4)+10=-14 | | -2a-6=-28 | | (x*x)-7=(x*x)-6x-7 | | 1/u+1/v=1/f | | 4x^2+39x-42=0 | | (4y+8)-(4+3y)=7 | | 2/17x+14 |