Answer:
n = [tex]\frac{14m-P-2A}{4}[/tex]
Step-by-step explanation:
Given
[tex]\frac{P}{2}[/tex] + A = 7m - 2n ( multiply through by 2 to clear the fraction )
P + 2A = 14m - 4n ( subtract 14m from both sides )
P + 2A - 14m = - 4n ( multiply through by - 1 )
14m - P - 2A = 4n ( divide both sides by 4 )
[tex]\frac{14m-P-2A}{4}[/tex] = n
