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

asked Jun 28, 2022 165k views

16 votes

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2 votes

Answer:

X = 10/3

Explanation:

8x - 4y = -40

y - 4x

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

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

x = 10/3

Matt Pascoe answered Jul 3, 2022

3.3k points

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