Solve the following system of equations by Substitution. 5x + 4y = 7 -2x - 2y = 8
2 answers:
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We see that the slope of this line is so we plug this and the point
into the point-slope form
(note that there's nothing special about the point I picked; you can choose any point on the line):
This rearranges to the slope-intercept form