If it's not what You are looking for type in the equation solver your own equation and let us solve it.
p in (-oo:+oo)
p/2+3 = 11 // - 11
p/2-11+3 = 0
1/2*p-8 = 0 // + 8
1/2*p = 8 // : 1/2
p = 8/1/2
p = 16
p = 16
| 7x-4y=7 | | -9x+2x+7x=90 | | 15+6= | | x+(x+2)+(x+4)=24 | | 4-(2-6)=90 | | 2x+4+(x+3)=24 | | 8x+4(4x+3)=4(6x+3)+-4 | | 9-7n=58 | | 3x+32=152 | | 6x-50= | | 24h+98=106 | | 1/5+4/7= | | 2x+1.50= | | 2x+x+x+7+7=3x+3x+4 | | x^-6y^-4/z^-5 | | 2x+x+2x+1=126 | | x^5+6x^3+8x= | | -16x^2+120x+240=0 | | -2x+8=-4 | | 20x^2-10x-60=0 | | 15x-18=9x+12 | | 11x-5=50 | | 8x^2-16x-14=2 | | 4y-6+5y-9=9 | | 10x^4y^5/20x^5y^6 | | 16x^2+24x-72=0 | | 2x-912=0 | | 2x^2-50x+48=0 | | x^2-56-10x=0 | | -22x-48+x^2=0 | | 3c-8c+7=-8 | | 145-7x=20x+16 |