If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r in (-oo:+oo)
(1/2)*(r+6.5) = 0
1/2*(r+6.5) = 0
r+6.5 = 0 // - 6.5
r = -6.5
r = -6.5
| 3(y-6)+6=5y-6 | | 10(-3+x)-2(x-12)=5x+9x | | 7Y(6y+3)= | | 20/24x3/4 | | 11t+-18t+17t+-6t=-20 | | 2(x-3)-17=3(x+2) | | -6w+8=-6-(-8) | | 2(6+b)=32+7b | | -3(p-6)=-6(p-2)-3p | | 6(-10+7x)=360 | | -5=n+3 | | (2x-4)=(4x-5) | | 37/12+8/9 | | 37/12+8/9 | | 58=-2x-7x+4 | | 3x^2-12+2X^2+13=180 | | -7u+3u+-u+4u+3=-17 | | 7x+2[2(1-n)-2(1+x)]=14 | | 13x^2+26x-22=0 | | -25-5a=-6(a+5) | | 5/9x18/25 | | 8(7k-11)=12k-12(6k-12) | | 4-1/3(-x+5)=1+2(1-x) | | m^2-4m+2=0 | | 10-5x-1=7x+11-12x | | -6*-6*-6= | | u-u+u=12 | | 7(n-11)=-7(-2n+8) | | 4x-4x=-16 | | 23x-16=15x-10 | | -3/4-(-5/8) | | 19=3(m+2)+1 |