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)
(21/5)*((-13/4)*p+5) = 651/5 // - 651/5
(21/5)*((-13/4)*p+5)-(651/5) = 0
(21/5)*((-13/4)*p+5)-651/5 = 0
21/5*(5-13/4*p)-651/5 = 0
(21/5*5*(5-13/4*p))/5-651/5 = 0
21/5*5*(5-13/4*p)-651 = 0
-273/4*p-546 = 0
(-273/4*p-546)/5 = 0
(-273/4*p-546)/5 = 0 // * 5
-273/4*p-546 = 0
-273/4*p-546 = 0 // + 546
-273/4*p = 546 // : -273/4
p = 546/(-273/4)
p = -8
p = -8
| X(6x-3)=(6x+9)(x-8) | | -4(5y-7)-y=-2(y-5) | | x*y=630 | | x(2x+3)=4 | | 3(x-8)=9x | | 3x+9-2x=13 | | 4x^4-20x^2+16=0 | | 26x+12=5(5x+4) | | 10-(2*-4)+3x=16 | | (5u+3)(5-u)=0 | | 3x+9-2x=14 | | 2x-6x+9=x-6+15 | | (7x^2+5x)/(x^2+1)-5x/(x^2-6) | | 5w+2.7=12 | | 9x^2+169=0 | | 3x+9x-4=3(4x+9) | | -8=-(-6x-3) | | .5x-4=0 | | 2y+2(y-6)=8y-6(y-10) | | 9(x-1)=-126 | | 7/36*x=5 | | 4(x-2)=2x-2 | | 52=p-41 | | -(8x-4)-(3x-5)+10=-9(x-1)-(5x+8+3) | | 7x-2+5=10x+4 | | p+13=-10 | | 6x+9-5x=16 | | -2(3x-6)+5=-1 | | 8y=5y+9 | | Rx+Sy=Tfory | | (-5+7i)+(-8-9i)=0 | | (x)=3x+4 |