What temperature is 15 degrees lower than 7degrees

15 degrees lower than 7 degrees means that we have to subtract.

So we have 7 degrees and it wants 15 degrees lower, so we would do 7 - 15

And so 7-15 = -8

So 15 degrees lower than 7 degrees would be -8 degrees. :)

15 lower than 7 is 7-15 or -8 degrees