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)
(2/5)*x-9 = 13 // - 13
(2/5)*x-13-9 = 0
2/5*x-22 = 0 // + 22
2/5*x = 22 // : 2/5
x = 22/2/5
x = 55
x = 55
| y=30/54 | | -8x-(3x-3x+6)=4-x | | 8=k+15 | | 3x^2+3y^2-15=0 | | (3n^2-2)(4n+1)=0 | | 17=y-1 | | 11x-7-10x=14 | | x^2+24x-480=0 | | 6x+x=-2 | | 22=6x-14 | | 3x+10+17x=40-5x-80 | | 5-(x+8)=3x-(x-12) | | x+x/3=4 | | 35v+42-36v-12=28 | | 6m=3(5m+18) | | 4a-2b=-20 | | 12=x*.4 | | 6x+1=x | | -3.5=5x | | 6xy-12=0 | | 8=4n+12 | | -4x^2+9x+28=0 | | 6x^2+x=-2 | | 1/4(2y+1)+1/3=-y/3 | | 25+x=10 | | -3(3p+3)-2(6-14p)=3(1+6p) | | 2x+2=34x | | 2x+0.4=18 | | (3x+6)/12=10 | | -2(x-4)=4(2x-3) | | 6x-3x+5=35 | | X+1/2=2x-1/5 |