If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
25-((2/5)*a) = 5 // - 5
25-((2/5)*a)-5 = 0
(-2/5)*a-5+25 = 0
20-2/5*a = 0 // - 20
-2/5*a = -20 // : -2/5
a = -20/(-2/5)
a = 50
a = 50
| -17=w/9 | | b/2= | | 3+8n=3*2n-1 | | 55+(-1+3b)=-11 | | 3(2x-1)=6x+-3 | | y=5x+c | | 6=x/-5 | | n-30=14-3 | | 2x(x)+2x=31.5 | | 46=m+9 | | 12-4x=60 | | -0.9+y=2.8 | | 3y+2+2y+9=9y-21 | | 6(z-8)=2 | | 6x+10+76=17x-2 | | S=2r^3t | | 3/4(12x-4)=6x+9-2x | | -6=.25+m | | -31+m/16=11 | | 1/2x+1/3=16/3 | | -27=m-(-14) | | 1/4a-12=5/4a/6 | | 8-x=-15 | | 3(7x-3)=44 | | -5+3x=3x+9 | | -12+v=20 | | 0.055x+5.519=0.030x+5.514 | | 3a^2-12a= | | 21-7x=-42 | | 7m+4=3(2m+5)-m | | 14m-56=140 | | 6y+9=3(2y+6) |