If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
(2/3)*a = 6 // - 6
(2/3)*a-6 = 0
2/3*a-6 = 0 // + 6
2/3*a = 6 // : 2/3
a = 6/2/3
a = 9
a = 9
| d+3/7=33/28 | | -62/7=a+1/7 | | 1+a=3/2 | | d+1=7/5 | | t-7=-19/3 | | n/-2=7 | | b-10=-19/2 | | 12x+3=4x-13 | | x-6=-52/9 | | w/4=6 | | b+1/2=-5/22 | | 31/12=w+3 | | -6+t=-11/2 | | 5+t=57/10 | | 5w=40 | | 23/12=b+1 | | m+2/5=-1/10 | | n/6=-3 | | m/3=4/5 | | 5/9+t=14/9 | | 2/5m=-2/9 | | a+3=-9 | | m+2/3=-25/3 | | d+5/8=37/40 | | k+8=15/2 | | d/3=6 | | n+1/2=-13/2 | | 4b=0 | | 1/7m=-9/7 | | 7+b=6 | | t+8=83/10 | | m+1/2=9/2 |