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)
-x/13 = 1 // - 1
-x/13-1 = 0
-1/13*x-1 = 0 // + 1
-1/13*x = 1 // : -1/13
x = 1/(-1/13)
x = -13
x = -13
| factorx^2-2x-4=0 | | 3/8v-3=4 | | 26x+6=14 | | 4/7t-6=2 | | x=4x-1/2 | | y/3-4=5 | | a=pier | | x^4y^5/x^3y | | 1+2388= | | 12+3x-7=6x+5-3x | | 4y-4=4y | | -2y-y-7=5 | | 6w-12=-9(w-7) | | 2-2ln(x)=7 | | x-3x+2=10 | | 7x-8y=-3 | | 0.6v+4.4=1.4 | | (4x-5)/2=x-3 | | x-2/5=x-3 | | -4x-3=-1 | | 6p3/10p4 | | .10x=30000 | | 5v^2-2v-24=0 | | 8b+14=6b+42 | | .007x=30000 | | 2sin(-2x)=1 | | 3x=1.80-4y | | -2x+14=14 | | X*.07=1000 | | 48+1= | | 4x-5/2=x-3 | | x/-3-19=-16 |