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)
(1/4)*x+6 = 13 // - 13
(1/4)*x-13+6 = 0
1/4*x-7 = 0 // + 7
1/4*x = 7 // : 1/4
x = 7/1/4
x = 28
x = 28
| 25a^2-36g^2=0 | | q+8=-2 | | (1/4)x+6=13 | | 1x-3x+2x=-9 | | (x+3)*(x+3)-13=0 | | u=v+12 | | 25s^2+70sg+49g^2=0 | | 3x/7+7/5=12 | | 8x-3=4x+37 | | 12x+8=6x+39 | | 81c^2-72c+16=0 | | 5/6t-11=4 | | y=8+-2x | | 4x+3+x-12=21 | | 108w^2-75=0 | | 3-8=4 | | 49c^2-64=0 | | 2/5x+6=10 | | 2x-9=6-7 | | 4/3/11/4/5 | | 2x^4+3x^2-20=0 | | x^2-2x-108=0 | | 45/3x=12 | | 3(-6n+2)= | | 15r^3+25r^2-60r=0 | | 5x^4-17x^2+14=0 | | 39/x+11=100 | | 6b^2-19b+10=0 | | 1/7(x+3)=1/2(x-5) | | 5a-6whena=6 | | 1/2x-12=-4 | | -2x-7(-5x-9)=-102 |