If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r in (-oo:+oo)
r/2 = 23 // - 23
r/2-23 = 0
1/2*r-23 = 0 // + 23
1/2*r = 23 // : 1/2
r = 23/1/2
r = 46
r = 46
| -3-9(1+3x)=-14 | | (9s+2)(s-5)=0 | | -9(6+8a)=31 | | u(u+1)=0 | | 6v-15=21 | | 9x-42-12x=39 | | 30/10x=-3x/10x | | b/48=2 | | -2x-37-3x=33 | | 5x^5-2x^2=0 | | 0.428571428571m-0.5=0.66666666666666 | | -12x+7x-40=30 | | a/21=3 | | -12a+2b=28 | | (5z+2)(5z-7)=0 | | 64/8=8 | | sin(x^2)=0 | | (1-x)(-37)+(x)(28)=0 | | 6x-80+8x=186 | | -6a+b=14 | | 30=-8+5(s+2) | | d(5d+8)=0 | | 84.64x=9.2 | | 3x+4-3-1=0 | | (-3/4)-(2/3)w= | | 3x^4=132x^2 | | 3s/4-9=6 | | 4x-2=3/6 | | 600=-15x^2+330x-815 | | 7z+5-8z=-17 | | 3+4(x+2)=7 | | -4n+4=25 |