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)
(3*X)/5+(5*X)/3 = 9 // - 9
(3*X)/5+(5*X)/3-9 = 0
34/15*X-9 = 0 // + 9
34/15*X = 9 // : 34/15
X = 9/34/15
X = 135/34
X = 135/34
| 13c+40=-20+c | | -4x-3+12-4x=-24 | | 5x^2-x+8= | | Y/4+3=5 | | 11+15=13y+5-12y | | 8z^3-1= | | 49-a^2= | | 8x-4+12-4x=-36 | | 11(e-1)+12=1 | | 5/2m+7/4=7/4-21/3m | | f(5)=0.25x | | -4p+6+5p=13 | | a^3+1= | | (X/3)-(X/5)=4 | | -12x^5-63x^4-15x^3=0 | | x-5/8=7/2 | | -9+14=9y+6-8y | | 2x-113=-x-2 | | v-6v=-4v | | 20x^6-128x^5+48x^4=0 | | 5x+21(X-3)=145 | | 8y+12=24-18 | | 10r^2+75r+180=0 | | 2.1+x=6.5 | | -8(-b-4)= | | 27x^5+129x^4-30x^3=0 | | 3x-7=4x+4 | | 30x^3-65x^2-140x=0 | | -6x^4-21x^3+90x^2= | | 6x-8=-36 | | 2xy+5x-3x= | | m=-5/2,(1/2,-4/1) |