A number p subtracted by its double is 10
The double of a number means we multiply p by 2:
2p
A number p is subtracted by its double
p - 2p
The phrase is means equal to, so we set p - 2p equal to 10:
p - 2p = 10
The double of a number means we multiply p by 2:
2p
A number p is subtracted by its double
p - 2p
The phrase is means equal to, so we set p - 2p equal to 10:
p - 2p = 10