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-1)-21 = -25 // + 25
(4/5)*(x-1)-21+25 = 0
4/5*(x-1)-21+25 = 0
4/5*(x-1)-21+25 = 0
4/5*x-109/5+25 = 0
4/5*x+16/5 = 0
4/5*x+16/5 = 0
4/5*x+16/5 = 0 // - 16/5
4/5*x = -16/5 // : 4/5
x = -16/5/4/5
x = -4
x = -4
| 55+38+x+x+x=180 | | 2x(2)-15x=8 | | X+x+x+55+38=180 | | 15x(2)+26x+8=0 | | (1/16x^140) | | (1/6x^140) | | -16+x+2x+x=180 | | 2/9x=7/5 | | 4(5x-20)=20(S-4) | | y/5+7=8 | | X+2x+x-16=180 | | 6-7(2x+4)=x-2(5x-3) | | -3/5x=-6 | | s/3-4=1 | | z-43=36 | | (10e^4x)/(14e^x) | | ((4x-5)/(2x+1))=((2x-1)/(x+5)) | | 2m-n=1 | | 14x+21=4x+231 | | 1/2x+3=-2x-2 | | ((4x-5)/(2x+1))=((2x-1)(x+5)) | | 4x(x-3)+5(x+3)=0 | | 89-2x=34x+21 | | 5m+3m+4= | | 5x-(x+1)=24 | | 2n-13n=77 | | 3y+4=9+5 | | y=1.5-0.5(2) | | y=1.5-0.5(1) | | y=1.5-0.5(-1) | | y=1.5-0.5(-2) | | 4x^2+2x=-2 |