A=1/2rh+1/2sh. solve for h.

Factor the h out.

A = h(r + s)/2

Then multiply both sides by 2/(r +s)

To solve for h in the equation A = (1/2)rh + (1/2)sh, we can follow these steps:

Step 1: Distribute the coefficients:
A = (1/2)rh + (1/2)sh becomes
A = (1/2)(rh + sh)

Step 2: Factor out h:
A = (1/2)(h(r + s))

Step 3: Divide both sides by (1/2)(r + s) to isolate h:
A / [(1/2)(r + s)] = h

Step 4: Simplify the right side:
A / [(1/2)(r + s)] = 2A / (r + s)

Therefore, after simplifying the equation, h can be solved as h = 2A / (r + s).