21-08-2018
Mathematics

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

PLEASE HELP ASAP CORRECT ANSWER ONLY PLEASE class=

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choixongdong choixongdong

21-08-2018

Substitute y = 1/5 x + 1 into x + 5y = -15

x + 5y = -15

x + 5(1/5 x + 1) = -15

x + x + 5 = -15

2x = -20

x = -10

Plug in x = -10 into y = 1/5 x + 1

y = 1/5 (-10) + 1

y = -2 + 1

y = -1

(-10 , -1)

Answer is the last one

(-10 , -1)

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