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

How to do it Please
Which equation demonstrates the multiplicative identity property?
the diameter of a circle is 3 meters. what is the radius of the circle?
what is the value of x?​
BRAINLIST!!!!! 5. What were members of the land-owning warrior class called? What was the most powerful samurai called? 6. Describe five significant contribut
Statement A: The opposite of -3 is 3. Statement B: The opposite of 6 is -6. Statement C: The opposite of the opposite of -2 is 2. Statement D: The opposite of t
Your friend’s family is moving to Spain during the summer. Based on what have you learned in this chapter, state at least three differences or similarities she
HELP!!! Why did coins replace other mediums of exchange? A. They had common value and were easy to steal. B.They were easy to make and difficult to use. C. They
What position does Dr Martin Luther king jr ,,hold in his speech,I have a dream
What is this book about ?