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Mathematics, 14.02.2020 03:01 asiaboo37

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 when solv...

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