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OpenStudy (anonymous):
What is the value of y in the solution to the following system of equations? 5x + 3y = -1 6x - 5y = 16
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OpenStudy (stefrheart):
okay so you multiply the top one by 6 and the bottom one by 5 which looks like 30x+18y=-6 30x-25y= 80
OpenStudy (stefrheart):
Now you have to subtract the equations which will look like 43y=-86 then solve
OpenStudy (stefrheart):
i got -2
OpenStudy (stefrheart):
understand?
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