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OpenStudy (anonymous):
Solve using substitution 3x - 9y = 3 6x - 3y = -24 Solve using elimination y - 1/2x = 6 2x + 6y = 19
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OpenStudy (mathstudent55):
For the first system, start by dividing the first equation by 3 and the second equation also by 3.
OpenStudy (mathstudent55):
What do you get for the first equation after dividing by 3?
OpenStudy (the_fizicx99):
Convert one into y = mx + b then plug in that for y into the other eqaution 3x - 9y = 3 6x - 3y = -24 6x - 3y = -24 -6x -6x -3y = -6x -24 /-3 /-3 /-3 y = 2x + 8 3x - 9(2x + 8) = 3 Can you solve from there?
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