brianrendon80 brianrendon80
  • 22-01-2021
  • Mathematics
contestada

Solve the system of equations.
4x + y = 2
x - y=3

Respuesta :

Аноним Аноним
  • 22-01-2021

Answer:

x = 1

y = -2

Explanation:

[tex]\bold{\begin{bmatrix}4x+y=2\\ x-y=3\end{bmatrix}}[/tex]

  • Isolate x for 4x + y = 2: x = 2 - y / 4
  • Substitute x = 2 - y / 4

2 - y / 4 - y = 3

  • Simplify

2 - 5y / 4 = 3

  • Isolate y for 2 - 5y / 4 = 3: y = -2
  • For x = 2 - y / 4 substitute y = -2

x = 2 - (-2) / 4

2 - (-2) / 4 = 1

x = 1

  • x = 1, y = -2
Answer Link

Otras preguntas

Assuming that the petals of the flower are congruent, what is the angle of rotation of the figureA.30°C.72°B.60°D.90°e?
What is the percent composition by mass of nitrogen in NH4OH?
A land developer is dividing 20 acres of land into 2 5 of an acre lots. If each lot is sold for $15,000, what is the total value of the 20 acres?
can i get help on this science question
Which expression is equivalent to (x^-4y/x^-9y^5)^-2 ? Assume x ≠ 0, y ≠ 0 A y^8/x^10 B x^5/y^7 C x^5/y^4 D x/y^7 Which expression is equivalent to 28p^9q^-5/12
The priest in “Ode to a Grecian Urn” is portrayed as
working to guarantee a high level of education for all students is an example of? A. ethnic diversity B. economic patterns C. political action D. social justice
Explain why programmed cell death (apoptosis) is important.
Is it A B C or D Please tell me how you got it and double check before you submit. Thanks
what is in the cloud of negatively charged particles that surrounds an atom?