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Subjects>Math>Math & Arithmetic

8x-y equals 54 8x plus 2y equals 60?

Updated: 12/18/2022

Wiki User

∙ 14y ago

Best Answer

Solving by the elimination method:

x = 7 and y = 2

Wiki User

∙ 14y ago

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8x - y equals 54 and 8x plus 2y equals 60?

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How do you solve 6x-4y equals 54 -9x plus 2y equals -69 using substitution?

-9x + 2y = -69 So 2y = 9x - 69 The other equation can be written as 6x - 4y = 54 or 6x - 2*2y = 54 Substituting for 2y gives 6x - 2*(9x - 69) = 54 6x - 18x + 138 = 54 12x = 84 x = 7 and then 2y = 9x - 69 = 9*7 - 69 = 63-69 = -6 so that y = -3

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Related questions

8x - y equals 54 and 8x plus 2y equals 60?

x=7 and y=4

How do you solve 6x-4y equals 54 -9x plus 2y equals -69 using substitution?

-9x + 2y = -69 So 2y = 9x - 69 The other equation can be written as 6x - 4y = 54 or 6x - 2*2y = 54 Substituting for 2y gives 6x - 2*(9x - 69) = 54 6x - 18x + 138 = 54 12x = 84 x = 7 and then 2y = 9x - 69 = 9*7 - 69 = 63-69 = -6 so that y = -3

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