If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z in (-oo:+oo)
z/15 = 9/45 // - 9/45
z/15-(9/45) = 0
z/15-1/5 = 0
1/15*z-1/5 = 0 // + 1/5
1/15*z = 1/5 // : 1/15
z = 1/5/1/15
z = 3
z = 3
| 13=a+9 | | N/-20=5 | | 3(-4x+1)+5(x+8)=78 | | (x+1)(x-1)(x+3)=0 | | 36/24=2/x | | 7x-9-2x=11 | | x+10=8x-11 | | 8(2+8x)=-40+8x | | 6(3x-12)+8=16 | | ln(2x-1)+ln(2x+1)=0 | | -92=-8y | | x/100=-1/50 | | 2p-r=10forp | | (x^2-4)(x-6)=0 | | 2lin(3x)=12 | | 2/14=-c/7 | | 14+8k=5+5k | | 4/12=2/n | | 18x=-168 | | -4a-21=-19 | | 2x+3y-x(8+1)= | | -9(-9+x)=45 | | 1/a=-1/2 | | 5x+7=(-3x)-9 | | 3=-3(-3n-2)+6(n-8) | | -91=5x+3x-3 | | x-6+2x=0 | | 3(2n-9)=2(5n+8)+5 | | 28-8x=(x+3)+2 | | -2(-7+4x)+4(-3x+6)=78 | | -4log^125x=-16 | | 1/a=-2/n |