isamarnat
isamarnat
21-01-2016
Mathematics
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3x + 1 = y; 2x + 3y = 25
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shinylovesoreos
shinylovesoreos
21-01-2016
Substitute the first y= equation into the y of the second. Distribute as needed and solve for x. x=2 and then plug it in to find y. y=7
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