23-03-2020
Mathematics

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y=2x-1 and y=x-8 using substitution

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devishri1977 devishri1977

23-03-2020

Answer:

Step-by-step explanation:

y = 2x - 1

y = x - 8 ------ (i)

substitute y = 2x - 1 in equation (i)

2x - 1 = x - 8

2x = x - 8 + 1

2x = x - 7

2x - x = -7

x = -7

Substitute x value in equation (i)

y = -7 - 8

y = -15

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