how do i do this?

Question

solve for indicated variable;

z=am/p+n solve for a

Answer 1

am/p = z-n

am = p(z-n)

a = p(z-n)/m

or

a = (pz-pn)/m

or

a = pz/m - pn/m

UNLESS, by chance you may have intended to write z=am/(p+n)

if so you really needed to include the parentheses

z= am/(p+n)

am = z(p+n)

a = z(p+n)/m

or

a = (zp+zn)/m

or

a = zp/m + zn/m

Answer 2

z=am/p+n

z-n = am/p

p(z-n) = am

p(z-n)/m = a

https://byjus.com/maths/basics-of-algebra/