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)
r/4-5 = -3 // + 3
r/4-5+3 = 0
1/4*r-2 = 0 // + 2
1/4*r = 2 // : 1/4
r = 2/1/4
r = 8
r = 8
| 3(x-4)2=18 | | 9-8u= | | 0.8(x)=40 | | p=3n+3u | | x^2+y^2=100 | | 0.8n=40 | | (6x-18)(3x+2)=2 | | 3(x+12)=45 | | -6(8+x)=-114 | | -3(1x+7)=-45 | | 0.80x+.05(10-x)=.10(-25) | | c/-4+3=-9 | | a+180-a=5a | | 4n+3=1 | | (2x+6)(x+6)=12 | | 5(9+4x)=205 | | 0.5(800)=x | | 2y-x=7-3x(2+4y) | | 2(-3x+7)=-46 | | 13(x+3)=4(x+12)+6x | | x+8x=27 | | 7/n+3=66 | | 6/5x=22 | | 2(6x+7)=-106 | | -x/-3x=14+26y | | 4n-3=-9 | | 4(6x+7)=-140 | | x^2-5x-16=34 | | -9x=2-20 | | 6(-5x-3)=-348 | | 0.15x=36 | | 15+4a/3b |