Seudónimo Seudónimo
  • 16-02-2017
  • Mathematics
contestada

please solve with working out
simultaneous equations
3x+2y=12
2x+2y=10

Respuesta :

Аноним Аноним
  • 16-02-2017
Here, 3x + 2y = 12
2x + 2y = 10

Subtract 2nd from 1st equation, 
x = 2

Now, substitute in 2nd, 
2(2) + 2y = 10
2y = 10 - 4
y = 6/2
y = 3

In short, Your Answer would be: (2, 3)

Hope this helps!
Answer Link
IsabellaRosette
IsabellaRosette IsabellaRosette
  • 17-02-2017
3x + 2y = 12 ----(i)
2x + 2y = 10 ----(ii)

Subtracting (ii) from (i),

x = 2

Now putting the value of x= 2 in (i),
3 x 2 + 2y = 12
6 + 2y = 12
2y = 6
y = 3

The value of x = 2 , y = 3
Answer Link

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