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)
(1/3)*(x+5) = -21 // + 21
(1/3)*(x+5)+21 = 0
1/3*(x+5)+21 = 0
1/3*(x+5)+21 = 0
1/3*x+68/3 = 0
1/3*x+68/3 = 0
1/3*x+68/3 = 0 // - 68/3
1/3*x = -68/3 // : 1/3
x = -68/3/1/3
x = -68
x = -68
| 1=4+2o-6-5o | | 4+3(-5-5b)=11-4b | | -7a+7+7a=4+a | | -9m+51-7(m-4)=5m-(4m-3)-7m+6 | | 3(2x-5)-7x=-13 | | X/8=x+7/4 | | x+15=5x+63 | | k/5-6=43 | | 15(x+6)-3x=138 | | 20r=-320 | | 3x-(6x+5)=8x-49 | | 34=18-4B | | -107=8b-3 | | A/10=a+9/2 | | 1/4=12(x+7) | | 15t=735 | | 5x/x-2+3/x+2=4/x^2-4 | | 17-6h=29 | | 4(3)-y=4 | | -18p-4(2-6p)=4(p-2)-8 | | -11-5x=8x+15 | | 3d+14=2 | | d+116=-747 | | (-7)+x= | | 5x/x-2+3/x | | 6(2x+8)+9x= | | 8/n+7=10/n | | 5*1/5*z=5*32/3 | | 7x-8=2x+8 | | 4(2)-y=4 | | 2a+11=5 | | v+2=2+6v-3v |