The blue dot is at what value on the number line?

4

Step-by-step explanation:

We can start by seeing the difference between -4 and -8. They have a difference of 4, so the middle number is 2 because 4/2 = 2. So now we can start skip counting, there are 4 lines between -4 and the blue dot. So 4*2 = 8. -4+8=4. So our answer is 4.

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

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step-by-step explanation: