Mr. D'Alton made some radium in his lab. He used 2 kg of the radium every time he ran his experiment. If he did the experiment four times and had 24 kg left, how much
radium did Mr. D'Alton make at first?​

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.