LostChild03 LostChild03
  • 24-11-2017
  • Mathematics
contestada

Solve each system by elimination by multiplying both equations. Eliminate "y" first. Show all work.

5x-8y=6
-6x-3y=18.

Thank you!

Respuesta :

chi3fcomm5nd
chi3fcomm5nd chi3fcomm5nd
  • 24-11-2017
we have the 2 equations
1- ) 5x-8y=6
2-) -6x-3y=18
multiplying the first equation by 3 and the second equation by 8 then subtracting
1-) 15x-24y=18
2-) -48x-24y=144

-48x-24y=144
(-) 15x-24y=18
-------------------------------------
-63x = 126
x=-2
substituting in equation 1
5(-2)-8y=6
-10-8y=6
-8y=16
y=-2
the soultion is (-2,-2)




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