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)
(2/3)*x+(2/3)*x = 7/8 // - 7/8
(2/3)*x+(2/3)*x-(7/8) = 0
(2/3)*x+(2/3)*x-7/8 = 0
4/3*x-7/8 = 0 // + 7/8
4/3*x = 7/8 // : 4/3
x = 7/8/4/3
x = 21/32
x = 21/32
| 1/4x-6=-3/4x+14 | | 2x+200=550 | | 4c^2+4c+1= | | 2x+18=1000 | | 4(x-8)+x=18 | | 5a+15=-2a | | 3/5*25 | | 4n^2-4n+1= | | 2x+7(6)=x(-28)2 | | 7z+9-3z=44-3z | | 3(x-13)-x=1 | | 7z+9-3z=44-9 | | 6x*6y= | | x^2-40+400=0 | | 5x+11=2x+10 | | 3x/4=x/2+35 | | -x+y-z=0 | | -6y+-4Z=-8 | | 10*9=10+10+10+60 | | 10*9=9*10 | | 10*9= | | 80000000000000*1000000000000023456= | | 0.6667= | | 1500=p*.05*5 | | (2x+7)/4-(x+1)/3+1=0 | | 100=x-0.4x | | 6x+32=14x-49 | | (2x+7)/4-(x+1)/3 | | 4r-1/7 | | 2r+4/4 | | 15a/3-25=100 | | 1=w-13 |