If "=CD4" means "CD=4" then C will be at either
-12 + 4 = -8
or
-12 - 4 = -16
That is, the distance between -12 and C is 4
|-12-C| = 4
Suppose that C and D are points on the number line. If =CD4 and D lies at −12, where could C be located?
1 answer