anonymous
  • anonymous
Solve the system of equations 4x – y = 9 and 3x – 5y = 11. What is the x-coordinate of the solution? A. –2 B. –1 C. 2 D. 3
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Can anyone please help me?
cwrw238
  • cwrw238
multiply first equation by -5 : -20x + 5y = -45 3x - 5y = 11 now add these to get equation in x solve this to get your answer
cwrw238
  • cwrw238
can you continue?

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anonymous
  • anonymous
is -17x = -34 correct?
cwrw238
  • cwrw238
yes
cwrw238
  • cwrw238
so what is x?
anonymous
  • anonymous
-2 ?

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