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Which method is the best way to solve the system shown below? 3x + 4y = 12 3x - 4y = 5

Which method is the best way to solve the system shown below? 3x + 4y = 12 3x - 4y = 5
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5 votes
Which method is the best way to solve the system shown below? 3x + 4y = 12 3x - 4y = 5

User Gupta
by
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1 Answer

11 votes

Answer:


3x + 4y = 12 \\ 3x - 4y = 5 \\ 6x = 17 \\ x = (17)/(6) \\ 3 * (17)/(5) - 4y = 5 \\ 51 / 5 - 4y = 5 \\ \\ 10.2 - 5 = 4y \\ y = (5.2)/(4)

User Salil Surendran
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7.6k points
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