How many solutions does the following system of equations have? x-y = 5 ; 3x-3y=15
And y= -4 ; y=x

ANSWERS

2021-02-25 11:26:53

Infinity for the first one and 1 for the second one. A: The first set of equations are the same equation and lie on top of each other on a (Cartesian) graph. So they would both go through the same points all the way up and down to infinity. B: (-4,-4)

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