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To solve this system of equations, we can use the substitution method.
First, we will solve the first equation for y in terms of x:
y = x + 3
Next, we'll substitute this expression for y into the second equation:
-4x + 4(x + 3) = 28
Simplifying the equation:
-4x + 4x + 12 = 28
12 = 28
This is not a true statement, so there is no solution to the system of equations. The lines represented by the equations do not intersect; they are parallel.