A Multi-Frey Approach to Some Multi-Parameter Families of Diophantine Equations We solve several multi-parameter families of binomial Thue equations of arbitrary degree; for example, we solve the equation $5^u x^n-2^r 3^s y^n= \pm 1,$ in non-zero integers $x$, $y$ and positive integers $u$, $r$, $s$ and $n \geq 3$. Our approach uses several Frey curves simultaneously, Galois representations and level-lowering, new lower bounds for linear forms in $3$ logarithms due to Mignotte and a famous theorem of Bennett on binomial Thue equations. Keywords:Diophantine equations, Frey curves, level-lowering, linear forms in logarithms, Thue equationCategories:11F80, 11D61, 11D59, 11J86, 11Y50