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/15 = -3 // + 3
r/15+3 = 0
1/15*r+3 = 0 // - 3
1/15*r = -3 // : 1/15
r = -3/1/15
r = -45
r = -45
| -x+1.7y=5.1 | | 3x+65=9x+13 | | 7+x=4x-(8) | | X+7=4x-8 | | 5x-2=61 | | 7.9= | | (x/2)=6 | | x/2-1=5 | | (x/5)=4 | | 3p+8=16 | | x+10*x=50 | | 8x-3=247 | | (x/4)=-20 | | [x-5]-2=-10 | | 177-3x=24x+24 | | 4x+3=3x-12 | | 12=(x/-4) | | [2x+3]=-3x-5 | | 2x^2y^2+16x^2y+32x^2= | | 5x+4y=110 | | c^2+121-22c= | | 4x-5y=-35 | | (x/-6)=-12 | | [2x+3]=-3x+5 | | v^3+1/64 | | [2x+5]=3x-4 | | 4d+9=-3 | | 10x^3+28x^2-6x= | | 81x^2+162x+81=0 | | 2-3w^2=-4w | | 4x/x+1=8-4/x+1 | | 82x^2+162x+81=0 |