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17x + 36y = 479 Y= 2x - 4
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2 votes
17x + 36y = 479
Y= 2x - 4

User Andrew Nguonly
by
3.1k points

2 Answers

4 votes
17x+36(2x-4)=479
17x+72-144=479
17x+72x=335
89x=335
x=3.76
User Risord
by
3.4k points
2 votes

Answer:

X=7

Y=10

Explanation:

Replace expression Y=2x-4 in 17x + 36y = 479

  • 17x+36(2x-4)=479
  • 17x+72x-144=479
  • 89x-144=479
  • 89x=479+144
  • 89x=623
  • x=
    (623)/(89)
  • x=7

Now, replace X=7 in expression Y=2x-4

  • Y=2(7)-4
  • Y=10
User Boredgames
by
3.6k points
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