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Mathematics, 06.03.2020 03:12 coolcat3190

3x − 4y = 12

2x + 6y = 18

Choose all of the equations that could be used when solving this system by substitution.

x = 9 − 3y

y = 18 − 3x

y = 3x + 3

x = 4

3

y + 4

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3x − 4y = 12

2x + 6y = 18

Choose all of the equations that could be used whe...

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