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MChristina MChristina
  • 27-01-2017
  • Mathematics
Answered

PLEASE HELP ME!!!!!
Graph the system by using technology. What is the y-coordinate of the solution?
Round to the nearest hundredth.
4x-y=2
2x+9=-12

Verified Answer :

Anonymous Anonymous
  • 27-01-2017

Take second equation here, 
2x + 9 = -12
2x = -12 - 9
2x = -21
Multiply by 2, 
4x = -42

Now, substitute the vaue of 4x in 1st equation, 
-42 - y = 2
-y = 2 + 42
y = -44

In short, Your Answer would be -44

Hope this helps!

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