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Jka9yla6langa Jka9yla6langa
  • 22-02-2017
  • Mathematics
Answered

{y=x−75x+2y=7

Use the substitution method.


(0, −7)

(3, −4)

(7, 0)

(−1, −8)

Verified Answer :

wolf1728
wolf1728 wolf1728
  • 23-02-2017

A) y=x−7
B) 5x+2y=7
A) x = y + 7
Substituting this into B)

y + 7 +2y = 7

3y = 0
y = 0
x = 7

Answer is C (7,0)

Answer Link

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