SofiaBakrim SofiaBakrim
  • 20-04-2017
  • Mathematics
contestada

is the ordered pair (3, -4) a solution for 5x + 2y = 7

Respuesta :

slippy2714
slippy2714 slippy2714
  • 20-04-2017
Well, plug in 3 to x, and -4 to y.

5(3) + 2(-4) = 7

15 - 8 = 7

7=7

Yes, (3, -4) is a solution. 

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