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)
(1/2)*(180-x)-2 = 90-x // - 90-x
(1/2)*(180-x)+x-90-2 = 0
1/2*(180-x)+x-90-2 = 0
1/2*(180-x)+x-90-2 = 0
1/2*x-90-2+90 = 0
1/2*x-2 = 0
1/2*x-2 = 0
1/2*x-2 = 0 // + 2
1/2*x = 2 // : 1/2
x = 2/1/2
x = 4
x = 4
| (1/2)(12n-8)=26 | | (1/2)(12n-2)=5n-7 | | (1/2)(12f+30)=9 | | 14/25*15/44*8/21 | | (1/2(9x-56))-7=2x-20 | | -3/5x=3/10 | | 2/13x=14 | | (1/14)B-5=-2 | | (1/12+6w)(1/2-5w)=0 | | 15x^2(x^2+2)-61x(x^2+2)+56(x^2+2)=0 | | -26x^2+20x-6x^3=0 | | (1/10)(m+8)-(1/15)(m-5)=1 | | (1/(x-5))+10=(x/(x-5)) | | 9X+12X+15=200 | | (1/(x-4))+1=(14(x+2)) | | 4x-3=-47 | | 12x^4y^3-20x^3y^4-24x^3y^3=0 | | (1/(x-3))+(1/(x+1))=6/5 | | -5.3-3y-6.7-y=-3y+6.6 | | 11-20y^2-39y=0 | | (1/(x-1))+(1/(x+2))=5/4 | | -4-9x+9x^2=0 | | 15y^2+13y-6=0 | | (1/(x+5))+(1/(x-5))=(1/(x+7)) | | (1/(x+2))=0 | | (1/(x+2))+(1/(x+3))-2=0 | | (1/(x))+(1/(x+1))=(13/42) | | 5/6x-1/5x+4=7/10x | | 7+2p-6=9p+9-6p | | (1/(w-1))-(1/(2w-2))=(1/(2w-2)) | | 23x+7=-6x+12 | | (1/(c-y))+(2/(c+y))=1/y |