5x + 4.3 = 21.235x = 21.23 - 4.35x = 16.93x = 16.93 / 5x = 3.386
412x = 30412x = 30412 / 412x = 73.8735
5x + 4.3 = 21.23
5x = 21.23 - 4.3
5x = 16.93
x = 16.93 / 5
x = 3.386
412x = 30412
x = 30412 / 412
x = 73.8735