Question Number 83340 by mhmd last updated on 01/Mar/20
$${by}\:{using}\:{the}\:{lagrange}\:{method}\:{solve}\:{the}\:{partial}\:{equatio}\:\left({p}−{q}=\frac{{z}}{{x}+{y}}\right) \\ $$
by-using-the-lagrange-method-solve-the-partial-equatio-p-q-z-x-y-