08.03)consider the following pair of equations:
y = x + 4
y = −2x − 2
explain how you will solve the pair of equations by substitution. show all the steps and write the solution in (x, y) form

If a solution exists, the coordinates of the two lines are the same, so we can say y=y, so we can say also that:

x+4=-2x-2  add 2x to both sides

3x+4=-2  subtract 4 from both sides

3x=-6  divide both sides by 3

x=-2, and since y=x+4

y=-2+4=2

So the solution to the system of equations is the point (-2, 2)

Yes, that is the correct formula. to solve this problem given the number of years, plug in the number of years for t and plug the whole thing into the

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