Solve h = 7(4m - 9r) for r
To solve for r, first divide both sides by 7:
h/7 = 4m - 9r
Next, isolate the term with r by subtracting 4m from both sides:
h/7 - 4m = -9r
Finally, divide both sides by -9 to solve for r:
r = (h/7 - 4m) / -9
Therefore, the final answer for r is r = (h/7 - 4m) / -9.