The number of units that fit along the edge of something could be the length, width, or height of an object, the length of one part of the perimeter, the circumference of a curve, or the length of the circumference of a closed circle or oval.
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The distance the number is from zero. For example, + 19 is 19 units of length on the positive side of the number line , to the right of the zero position. - 19 is 19 units of length going the other way, to the left of the zero position on a number line.
To find the number that is 8 units to the left of negative 7, you subtract 8 from negative 7. This calculation looks like: -7 - 8 = -15. Therefore, the number that is 8 units to the left of negative 7 is -15.
22 units away.
-12 and 12