Solve the equations and fill in the missing numbers in the table.

Given the equations: \(x + 7 = 15\) and \(x + 3 = 13\). Solve for \(x\):\n1. \(x + 7 = 15\): Subtract \(7\) from both sides: \(x = 15 - 7 = 8\).\n2. \(x + 3 = 13\): Subtract \(3\) from both sides: \(x = 13 - 3 = 10\).\nFill the table accordingly with \(x = 8\) and \(x = 10\) for the respective equations.