Question: nonlinear equation

I want to solve a system of 2 equations and 2 variables with solve functions.But,I receive invalid argument error.the problem is following:

 R11 := {(200*(-0.8e-1*t+0.8000000000e-1))/p^2-(120*(t-0.3999999999e-1*t^2+0.3010e-1*t^2.5))/p^3-25.0000*t^1.5/p^3-(46.67*(-5.760000000+6*t-.24*t^2))/p^3-(100*(0.8000000000e-1+0.50e-1*t^1.5))/p^3 = 0}

R22 := {-(400*(.9200000000-0.4e-1*t^2+0.8000000000e-1*t))/p^3+(360*((1/2)*t^2-0.1333333333e-1*t^3+0.86e-2*t^3.5))/p^4+(240*(1+.125*t^2.5))/p^4+(140.01*(2.840000000-5.760000000*t+3*t^2-0.8e-1*t^3))/p^4+(300*(.9200000000+0.8000000000e-1*t+0.2e-1*t^2.5))/p^4 = 0}

does anybody know how to solve it?or may be with plotting both equations in one plot and finding match point?

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