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)
(2/5)*n = -10 // + 10
(2/5)*n+10 = 0
2/5*n+10 = 0 // - 10
2/5*n = -10 // : 2/5
n = -10/2/5
n = -25
n = -25
| -5s+7=(-4s)+12 | | -6u-6=-4(u+4) | | -8x7/4 | | 2+7n=-3 | | 7-4x=-17+2x | | -(-8+r)-(1-5r)=35 | | -15y-10=(-14y)+13 | | (8-6x^5z^3)/(x^2z) | | 3(x-7)-5x=-9 | | v+12=0 | | 9x-1=x | | M10/m5 | | 7.5=1.1+1.2 | | -3-2ln(x)=0 | | 39=3u+6(u+8) | | -5/7(-3) | | -13n+8=-12n-12 | | -5p-18=-5+8(-5p-6) | | Xp+qx=r | | (-60.5/x)=3 | | x-4/6=9/x | | -60.5/x=3 | | -19=7w+2(w-5) | | 49ab^2-35ab=0 | | 7+2(m-4)=1 | | 3/7(-1/3) | | -23=3(y+4)+2y | | (-14a)-14=(-8a)-2 | | 8x-4=8(x+9) | | 6/9=x-4/x | | a=2+2b | | -3=3(y+4)+2y |