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)
x/3-1 = 20 // - 20
x/3-20-1 = 0
1/3*x-21 = 0 // + 21
1/3*x = 21 // : 1/3
x = 21/1/3
x = 63
x = 63
| -27x+3y=9 | | 9x+12x=130+x | | -16=8(7+k) | | 4y=3x+2y | | -2+x= | | x-(-2)= | | 54/6+(6+3)*20+15 | | 6x-4+9x+19= | | 4x^6=82 | | -108=9(h-10) | | -3(x-3)=5-5x | | 21=7(n+6) | | 16=4c+4 | | 8(m+4)=-8 | | 6(c+8)=6 | | 3(x^2-2x+1)+6x^2-6x=0 | | 5x+7-6x^2+6-11x+4x^2= | | 5(a-4)=-50 | | x^2+6xy-7y=0 | | -22=-4-6b | | 5x/3+3/3=5/6+6x/6 | | 3x-3=11x-57 | | 2u-7=9 | | (10)(1/2x)(4)=-40 | | x^3-14x^2+48x=0 | | 12x-14=9x+2 | | -10x+6=-7+5-9 | | 3-2(1-x)=11 | | 9x^4-225y^8= | | 3+1/5x=-1 | | ((3x-4)/5x)/(9x-12) | | 1/3b=3 |