Simplifying
5x[(11 + -3) + -1(13 + -9)] = 0
Combine like terms: 11 + -3 = 8
5x[(8) + -1(13 + -9)] = 0
5x[8 + -1(13 + -9)] = 0
Combine like terms: 13 + -9 = 4
5x[8 + -1(4)] = 0
Multiply -1 * 4
5x[8 + -4] = 0
Combine like terms: 8 + -4 = 4
5x[4] = 0
Reorder the terms for easier multiplication:
5 * 4x = 0
Multiply 5 * 4
20x = 0
Solving
20x = 0