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29-05-2017
Mathematics

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what is the y coordinate of the solution to the system of equations? 3x+6y=3 5x-y=27

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apologiabiology apologiabiology

29-05-2017

solve for y
eliminate x
multiply firs tequation by -5 and 2nd by 3 and add them

-15x-30y=-15
15x-3y=81 +
0x-33y=66

-33y=66
divide both sides by -33
y=-2

the y coordinate is y=-2

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