sibelkeklik81 sibelkeklik81
  • 24-02-2020
  • Mathematics
contestada

Solve the simultaneous equation

2x + 3y = 13
4x - y =-2

Respuesta :

iwillanswer iwillanswer
  • 01-03-2020

The solution is x = 0.5 and y = 4

Solution:

Given system of equations are:

2x + 3y = 13  ------- eqn 1

4x - y =-2 ------- eqn 2

We can solve by elimination method

Multiply eqn 2 by 3

12x - 3y = -6 ------ eqn 3

Add eqn 1 and eqn 3

2x + 3y = 13

12x - 3y = -6

( - ) ----------------

14x = 7

[tex]x = \frac{7}{14}[/tex]

x = 0.5

Substitute x = 0.5 in eqn 2

4(0.5) - y = -2

2 - y = -2

y = 2 + 2

y = 4

Thus solution is x = 0.5 and y = 4

Answer Link

Otras preguntas

27. Which expression is NOT equivalent to the other expressions? A (4x^2y)^2 B 16x^4y^2 C 16x^2y^4 D 4^2x^4y^2
Need some help with this
What is the halfway point between 12 and 13Is that point closer to 12 or 13?​
Which number line represents The solution set for the inequality -1/2x>4?
Why do justices use precedents in majority opinions and dissents?
A cell makes and secretes a certain protein. Explain where it is made, how it is secreted fromthe cell, and what kind of transport is used.​
What impact did Georgia’s transition from a trustee colony to a royal colony have on its economy? A. It began to thrive. B. It stayed the same. C. it colla
Which type of transport requires a direct molecule of ATP? Active transport Osmosis Facilitated transport Simple diffusion
Which option best characterizes the following scenario? Adnel Company sells purified water products and advertises the great, clean taste and reasonable cost. I
example of stimulants​