Question 65844
Find x : 

{{{(x + z / a) = a(b/m + 1/c)}}}
:
{{{x + z / a = ab/m + a/c}}}
:
Mult eq by amc to get rid of the denominators, you have:
amcx + mcz = a^2*bc + a^2*m
:
amcx = a^2*bc + a^2*m - mcz
:
Divide both sides by amc and you have
x = {{{(a^2*bc + a^2*m - mcz)/amc}}}