If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
(3*n)/5 = 3 // - 3
(3*n)/5-3 = 0
3/5*n-3 = 0 // + 3
3/5*n = 3 // : 3/5
n = 3/3/5
n = 5
n = 5
| 25x^2-25x-24=0 | | -12+7b=1-6(7-6b) | | x-2.4x+3.8=1.2+0.6x-7.2 | | 3(2x+5)-3=42 | | 3r-17=2r | | Ln(1/e-5) | | (2/5)w=40 | | x-14+10+16=29 | | -17-8n=5(6-7n)+7 | | 5-2f=-1-3f | | 4x-450= | | 5(x-16)=x-16 | | c=75+2n | | f(2)=x^2+3 | | -5(1-n)=25-n | | 4x-450=1620 | | log(b)1/27=-3 | | 4p+6-2=-8 | | 3(x+4)-6x=8-3(x-5)x | | 1+5x+6=-3 | | 144-(7x+11)=7(x+4)+x | | N+5+4=5 | | 81.50=7x+9y | | 7/9x18 | | 6x-35=x-35 | | -6p+3-1=-10 | | 2.5x-6.2+4.2x=5.8-4.3x-7.6 | | x-19+12+10=17 | | 3(4v-6)-4(1-2v)=-42 | | 57-(4x-3)=4(x+9)+x | | 9x-32=x+8 | | -x-11=-13 |