1. The problem statement, all variables and given/known data Find the volume of the region bounded by the planes 7x + 6y + 8z = 9, y = x, x = 0, z = 0. 2. Relevant equations Multiple integration. 3. The attempt at a solution My attempt at a solution is attached. To test, I computed the answer with Wolfram Alpha which yielded an incorrect answer of 243/5488. Any help in solving this problem would be greatly appreciated! Thanks in advance!