robert122894 robert122894
  • 03-11-2019
  • Mathematics
contestada

Solve the system using the addition method. State your solution as an ordered pair.

3x+2y=56
9x-2y=4

Respuesta :

altavistard
altavistard altavistard
  • 15-02-2021

Answer:

The solution as an ordered pair is (-11/9, -15/2)

Step-by-step explanation:

Multiply the first equation by -3.  The resulting system is then

-9x - 6y = 56

9x - 2y = 4

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

 -8y = 60, or y = -7.5.  From the second equation and this result y = -7.5, we know that 9x - 2(-7.5) = 4, or 9x = -15 + 4, or 9x = -11.  Then x = -11/9.  The solution as an ordered pair is (-11/9, -15/2).

Answer Link

Otras preguntas

Could you help with this please?
What is the value of t on the truss of the bridge?
For what value of x does 625 - 5^6-2x?
Unlike strong listeners, weak listeners: a. listen to dry subjects. b. listen for central themes and key ideas. c. take intensive and detailed notes. d. activel
50 POINTS!!!!Write the final critique of Picasso’s work in essay form. Must havean introduction, a conclusion, and several body paragraphs.
Each cheerleading uniform includes a shirt and a skirt. Shirts cost $17 each and skirts cost $19 each. The expression 17u + 19u represents the cost in dollars o
Can you please help me with this 5/10 + 2/3 Thanks
The owners of the pet sitting business have set aside $48 to purchase chewy toys for dogs, 2, and collars for the cats, y. They are pricing the items at two dif
What continent has the highest rate of population growth?.
please help!!I'll make you brainliest ​