ComicSans66
ComicSans66 ComicSans66
  • 12-01-2017
  • Mathematics
contestada

Which graph represents the solution to the given system? -4x+3y=-12 and -2x+3y=-18

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hmsstudent1313
hmsstudent1313 hmsstudent1313
  • 13-01-2017
-4x+3y=-12 
-2x+3y=-18
for this problem i want to eliminate so im going to multiply the second equaion by -2 so i can eliminate the x values and get a new equation of : 4x-6y=36

now you can eliminate
    -4x+3y=-12 
 +  4x-6y=36
         -3y=24
           y=-8
now that you have the y value so its easy to find the x, by plugging in -8 for y in either of the equations

4x+3(-8)=-12
4x-24=-12
4x=12
x=3

(3,-8) 

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Rawknowledge24
Rawknowledge24 Rawknowledge24
  • 20-08-2018

i took the test and got an 100 the answer is( -15,-16)

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