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-9 = 7-((3/5)*n) // - 7-((3/5)*n)
(2/5)*n+(3/5)*n-9-7 = 0
n-16 = 0 // + 16
n = 16
n = 16
| x-3y/x | | 3y+4y+5-2y-8x-7= | | s=2m+2w | | 91/2*9/1 | | 2x+3=5x-24 | | 40-(2x+16)=64+8x | | 4/3m^2n^2 | | -6/11*x/2 | | 8/9x1/7 | | (4a^3/2b^4)^2 | | 1/6+14/x | | 3x/5x=-0,6666666666666667-1 | | 5/3m^2n^2 | | 3r+8s+5r-2s= | | 3x/5x=-2/3-1 | | 3x/5x=-2/3+1 | | 9x-20=6x-5 | | 3r+8s+5r= | | 3/2y+5/2y | | 15p+12q+p-3q-3p= | | 84-5x=22x+18 | | x^2+x-12=8x-4 | | 12-8x=176-36x | | 1/5x+1/11y | | 3/14= | | 60=(4+x)x | | 1-3x/5x=-2/3 | | 32=-n/8+8 | | 8n+1=100 | | 2x/2x-3x/5x=-2/3 | | 14-7/8n=56 | | 8n-7=100 |