Solve using substitution method. Y=2x+6 3x-y=6

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junie30 junie30

22-03-2018
Mathematics

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Solve using substitution method. Y=2x+6 3x-y=6

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Аноним Аноним · Answer 1 · 2018-03-22T08:02:18+01:00

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Equation
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y = 2x + 6 ------------------ (1)
3x - y = 6 -------------------(2)

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Substitute equation (1) into (2)
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3x - (2x + 6) = 6

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Remove bracket
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3x - 2x - 6 = 6

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Combine like terms
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x - 6 = 6

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Add 6 to both sides
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x = 6 + 6
x = 12

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Substitute x = 12 into equation (1)
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y = 2 (12) + 6
y = 24 + 6
y = 30

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Answer : x = 12, y = 30
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