HazelgraceZ426063 HazelgraceZ426063
  • 30-10-2022
  • Mathematics
contestada

6x - 4y = -2 -4x - 4y = -12

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SantosY524741 SantosY524741
  • 30-10-2022

S={(1,2)}

1) Let's solve this Linear System of equations, using the Elimination/Addition method

6x - 4y = -2 Multiply by -1 the whole equation

-4x - 4y = -12​

-6x + 4y = 2

-4x - 4y = -12​

-----------------------

-10x =-10 Divide both sides by -10

x = 1

2) We can plug into the 2nd equation, x = 1

-4x -4y = -12

-4(1) -4y= -12

-4 -4y= -12

-4y= -12+4

-4y = -8

4y = 8

y =8/4

y=2

3) Hence, the answer is S={(1,2)}

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