This is a true or false question but I’m not sure how to solve this problem.

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9