crazyflipscole crazyflipscole
  • 25-02-2021
  • Mathematics
contestada

4x + 5y = 22
7x - 3y = -32

Respuesta :

clarch19
clarch19 clarch19
  • 26-02-2021

Answer:

x = -2

y = 6

Step-by-step explanation:

i multiplied the 1st equation by 3 and the 2nd by 5 to get the y-terms to zero out

   12x + 15y = 66

+  35x - 15y = -160

   47x = -94

x = -94/47

x = -2

substitute -2 for 'x' to solve for 'y':

4(-2) + 5y = 22

-8 + 5y = 22

5y = 30

y = 6

   

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