If it's not what You are looking for type in the equation solver your own equation and let us solve it.
c in (-oo:+oo)
7*c-(2/3) = 0
7*c-2/3 = 0
7*c-2/3 = 0 // + 2/3
7*c = 2/3 // : 7
c = 2/3/7
c = 2/21
c = 2/21
| 4(4x+5)=16x-8 | | X^2-17x-27=-8x-5 | | 16|27/8|9 | | x^2-38x=560 | | 2c+4c+28= | | 20/8=x | | 4x-1/2=111/2 | | 3u=63-4u | | -8(-6+w)=32 | | (X)^(3/5)=8 | | 15=4g+2 | | -86-x=-9x+90 | | X^3/5=8 | | 11x+16+8x+12=180 | | 6/(x-9)12 | | X^2-2=-5x+4 | | -2(a+7)=16 | | -13.8=w/7-2.6 | | 0.5=0.75m | | 2(5x-5)=4x+23+3x | | 1.5x+-10=-16 | | 3y+3=4y+2 | | 3x-x+10=2x+2+8 | | -92-12x=-x+139 | | 28-0.3=0.7y-2 | | 2(3x+1)+2=2(2x+2)+8 | | 6+17v=-15 | | 2b+b=7b-2 | | 24=-2x-6y | | 6x-17=4x+7 | | 3-t=t+3 | | 268=133-y |