Use only 7, 5, 6, and 3 to create an expression that equals 75 and you can only use each number once
75=(3∗7−6)∗575=(5+7)∗6+3
5x7+5x7+5=75
[7 * 3 - 6 ] * 5 =
[ 21 - 6 ] * 5 =
[15 ] * 5 =
75