Respuesta :
2x - 31 = -9x + 24 (add 9x to each side)
9x + 2x - 31 = 24
11x - 31 = 24 (add 31 to each side)
11x = 24 + 31
11x = 55 (divide 11 from each side)
x = 55/11
x = 5
9x + 2x - 31 = 24
11x - 31 = 24 (add 31 to each side)
11x = 24 + 31
11x = 55 (divide 11 from each side)
x = 55/11
x = 5