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−x+3y=−15, 3x+3y=21 elimination

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−x+3y=−15, 3x+3y=21 elimination

asked Jun 28, 2022 4.2k views

23 votes

−x+3y=−15, 3x+3y=21 elimination

Mathematics
high-school

by Udog

8.4k points

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1 Answer

9 votes

Answer: x= - 6/7, y= - 129/12

Explanation:

use the addition/elimination method to solve for x. then sub in and test then lastly, multiply everything by 7 to eliminate the fraction

Mpjdem answered Jul 2, 2022

by Mpjdem

9.1k points

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