Answer:
Step-by-step explanation:
The solution to a system of linear equations is the ordered pair (or pairs) that satisfies all ... Solve the following system of equations by substitution. ... For example, consider the system of equations below: 3x + 2y = 6 x − y = 8 ... 12x + 18y = 39
The relationship between the 6's in 7,664 is that it can be 600 and 60.
It would be

indicating we start at 5 but do NOT include 5, and we keep going onward to positive infinity.
The curved parenthesis tells us not to include the endpoint.
Answer:
25
Step-by-step explanation:
Because -25 means that we are 25 below 0 we would then have to add 25 back to -25 to get to 0
I hope this helps and please don't hesitate to ask if there is anything still unclear!