21cottonbrehanna 21cottonbrehanna

08-03-2021
Mathematics

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solve the system by substitution y-4x 8x-4y=-40

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sbrnaries sbrnaries

08-03-2021

Answer:

X = 10/3

Step-by-step explanation:

8x - 4y = -40

y - 4x

10+2x - 4x = 10 - 2x

8(10 - 2x) -4(10 + 2x) = -40

x = 10/3

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