If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
30-((15*x)/3)-x = 5*x // - 5*x
30-((15*x)/3)-x-(5*x) = 0
30-5*x-x-5*x = 0
30-11*x = 0 // - 30
-11*x = -30 // : -11
x = -30/(-11)
x = 30/11
x = 30/11
| (16x^2)-40x=23 | | x/3-x/9 | | (x^2)-8x+16=29 | | 5.3+5*3-(10-7)= | | 2x-4=4x-51 | | 30x-15x=5x | | (5/2-1/a)/(8/2a) | | 9.8-1*1= | | 4n-3=n+33 | | 9x-6x+4x=49 | | (9x-2)-(6x-9)= | | -10+2[6(n+1)-3n]= | | 3x-10+40=180 | | x*y/30 | | -4(5y-10)-y=-3(y-4) | | 2[7-7(2-n)]+3n= | | 9x^2*lnx-6x*lnx=8*lnx | | 132=6x+6y | | x*(x-2)=255 | | 303=15x+12y | | 4(4q-2q)+1=2q | | 6-3a=15 | | -2[5+4(x+5)]= | | 280=4*(n^2+7n+10) | | 6q^2-2q=5q^2-8q+27 | | 6-3b=24 | | (n+3)(n+3)=64 | | 2m+3p=-1 | | 6n^2-1n=2 | | x*(6,5/3,75)=3,25 | | 9-2n=91 | | 6n^2-1n-2=0 |