y = -1/2x-4,
y = 4x-13.
Since left sides are identical, you can equalize right sides. It gives
x - 4 = 4x - 13.
Thus you have single equation for the unknown x.
Solve it.
Then substitute the found value of x into either of the original equations and calculate y.
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Comment from student: Thank you! I got x= 2, but for y I got -10.5, the answer says y= 5... do I just reduce? how do I make it positive?
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