what nummber must be added by 12 to get -5

Question

draw a number line about inn my question and answer and then solve

Answer 1

Hi Korina,

 

 

 

 

 

←        -17  -16  -15  -14  -13  -12  -11  -10  -9  -8  -7  -6  -5  -4  -3  -2  -1  0  1  2  3  4  5  6  7        →

 

 

 

 

 

 

           -17 + 12 = -5

 

 

Let X be added to 12 to get -5

 

X + 12 = -5

X = -5 -12

X = -17