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)
9/20 = x+3/4 // - x+3/4
9/20-x-(3/4) = 0
9/20-x-3/4 = 0
-x-3/10 = 0 // + 3/10
-x = 3/10 // * -1
x = -3/10
x = -3/10
| 11/24=t-1/8 | | k/7=-1/3 | | 6+x=-1 | | -75/8=w-10 | | w-6=0 | | t+7=11 | | -2/3+m=10/3 | | m-2=-6/5 | | t+5/8=85/8 | | k+1=4/3 | | -5/9+t=13/36 | | 5w=1 | | a+3/4=-33/4 | | w+3/5=38/5 | | -1+w=-5/8 | | a+1/2=21/2 | | a+5/6=-31/6 | | a+2/5=11/15 | | t-3/7=60/7 | | 1/4+d=43/44 | | x+2/3=5/21 | | 6/35=d+3/5 | | k-10=-21 | | t+2/3=-7/3 | | d/4=-3 | | 3/4+w=29/28 | | 19/10=t+1 | | a/6=-2/7 | | 6+k=7 | | -1/24=d-7/8 | | k-5/7=9/7 | | 4/5=m+1 |