twelve less than a number is -75. find the number

Question

twelve less than a number is -75. find the number

Answer 1

12 less than a number is -75.

Whenever I see those words "a number," I replace them with x. Or maybe N. Let's go N, as N is for number. So...

N - 12 = -75.

Add 12 to both sides, and get N = -63.