soniakenik109
soniakenik109 soniakenik109
  • 22-08-2021
  • Mathematics
contestada

Solve the below:
4x+3y=7 3x-2y=9

​

Respuesta :

Cheesysyd Cheesysyd
  • 22-08-2021
4x+3y=7
3x-2y=9

12x+9y=21
12x-8y=36
^^Multiply top equation by 3 and multiply bottom equation by 4

12x+9y=36
- 12x-8y=36

17y=-15
^^Then subtract those two new equations

17y/17= -15/17

Y= -0.88
^^Next divide both sides by 17

4x+3* -0.88=7

4x + (-2.64) =7
-(-2.64) -(-2.64)

4x = 9.64

4x/4=9.64/4
X=2.41

^^then choose on equation and put your new y in the y spot and solve.


X=2.41

Y=-0.88

Your point/coordinate is (2.41,-.88)
Answer Link

Otras preguntas

Which Kelvin temperature is equal to 200.°C?
the one to one functions G and H are defined as followG={(-8,1),(1,5),(4,-5)(8,-9)}H(x)=3x+4find the following g^-1(1)=h^-1(x)=(h^-1oh)(-2)=
The boy was penitent and _______ to the store clerk for stealing candy.a-bragged b-apologizedc-talked d-cordial
Which Kelvin temperature is equal to 200.°C?
Our body needs iron. Certain foods are rich in iron and iron tablets are usually recommended by doctors. but neither the food nor tablets are hard like iron? Wh
How do I solve for x and state the restriction if (a-c)/(x-a)=m
The sum of two numbers is 17 and their different is 5. Find two answers
Insert 2 irrational numbers between 2/5 and 3/4
Which Kelvin temperature is equal to 200.°C?
what is a prepositional case?