If it's not what You are looking for type in the equation solver your own equation and let us solve it.
d in (-oo:+oo)
d/4 = 28 // - 28
d/4-28 = 0
1/4*d-28 = 0 // + 28
1/4*d = 28 // : 1/4
d = 28/1/4
d = 112
d = 112
| -1+log(3x-4)=0 | | x^2(4x-3)(5x-1)=0 | | 29/1000x100 | | 2y+7y=81 | | -(3x+2)-4=9 | | 7y+26x= | | 0.09xX=93.34 | | 8+6=5-2 | | 9(-4n-8)= | | 2/5r=14 | | d^2=4 | | 10x-35=21-18x | | 8+6=5-10 | | -3x+15=4(x-2) | | 4(2r-6)-3r=6 | | -11x-56=-8x+16 | | 8x-6=5x+2 | | 12x-14=3x-1 | | 0.5(x+700)+0.1x=44 | | -11x-6=-8x+16 | | 8+6=5-9 | | 4y=7y+6 | | n+(2n+1)=88 | | -11x=-8x+16 | | 8xy-24y+10x^2-30x+7xz-21z= | | In(2x-3)-In(x+5)=0 | | (-7s)-(8t)= | | 3s-4=7 | | 57=3y+12 | | -5=1p+5 | | 4x+5=4x-9 | | 22=5(x-2)-3x |