tayaross99 tayaross99
  • 03-05-2021
  • Mathematics
contestada

Solve the simultaneous equations 2x+3y=9 4x+y=13

Respuesta :

drmallery drmallery
  • 03-05-2021

Answer:

x=3, y=1

Step-by-step explanation:

2x+3y=9. Equation 1

4x+y=13   Equation 2

y=13-4x.  Modify equation 2 to isolate y

2x+3(13-4x)=9 subst value of y of equation 2 into equation 1

2x+39-12x=9 solve equation

-10x+39=9

-10x=-30

x=3

solve for y

2x+3y=9

2(3)+3y=9

6+3y=9

3y=3

y=1

Check answer:

4x+y=13

4(3)+1=13

13=13

Answer Link

Otras preguntas

Multiply 3 3/8 • 4 1/3​
Can someone please help me
Please answer this question!!!
Convergent evolution is a process where organisms independently evolve traits. Some molecular data place the giant panda in the bear family (Ursidae) but place
what is the modification of the small intestinal wall that serves to increase surface area?
________ firm engages in trade and marketing in different countries as an extension of the marketing strategy in its home country.
A large region that has a particular type of climate that effectively influences the types of plants and animals that inhabit each ecosystem is a(n) ___________
Find the acute angle between the lines. 5x ? y = 2, 6x + y = 6
Fill in the blank with the correct German article. Die Nichte vermisst _____ Eltern. der die das den
3x+7y=17 3x-6y=4 solve this by elimination method plzzzzzzzzzzzzz helppppppppppppp meeeeeeeeeee