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)
(4/5)*x = -20 // + 20
(4/5)*x+20 = 0
4/5*x+20 = 0 // - 20
4/5*x = -20 // : 4/5
x = -20/4/5
x = -25
x = -25
| -17+1x=9 | | 2/17x=8 | | (100-4x)/(3)=(5x+6)/(4)+6 | | r-1/2=-3/4 | | 5(x-3)=-2(x-3) | | 1,5(x-4)-(3-2x)=50-0,5x-(4-5x) | | y+10=-28 | | 8n-2=4+2n | | 100-4u/3=(5u+6/4)+6 | | 30x-25+20x=15-10x+5 | | 9x+7x=32 | | x^3-4x^2+14X+39=0 | | X+3=4x+18 | | -1=8+(-19) | | y-19/y=-60 | | y-2=-2 | | 9s+20=-16 | | 12/20=x/35 | | 8/x+240 | | 52+x=75 | | 14-(3*a)=28 | | 4x^2y-3xy^2+15xy-12+9xy^2-14xy+19=13x^2y+7xy^2-16xy+21 | | 7x+2y=107 | | 8.27x=4.82 | | 5+3*a=23 | | 8.27=4.82 | | -4-5r=-4-6r | | 12-6*a=6 | | 3/2(z+5)-1/4(z+24)=0 | | 4d+3=23 | | -7p-10=-8p-4q | | m^2+12m=35 |