Question

C= 1/2h(q+z) for q
solve for q

Answer 1

c=h/2(q+z)
c=(hq+hz)/2
2c=hq+hz
2c-hz=hq
(2c-hz)/2=q

Answer 2

`C=(1)/(2)h(q+z)\\\\(1)/(2)h(q+z)=C\ \ \ \ |multiply\ both\ sides\ by\ 2\\\\h(q+z)=2C\\\\hq+hz=2C\ \ \ \ |subtract\ hz\ from\ both\ sides\\\\hq=2C-hz\ \ \ \ |divide\ both\ sides\ by\ h\\eq0\\\\q=(2C-hz)/(2)`