ineedhelp10910 ineedhelp10910
  • 23-02-2019
  • Mathematics
contestada

How do i solve this equation??
​

How do i solve this equation class=

Respuesta :

gmany
gmany gmany
  • 23-02-2019

Answer:

x = 3 and y = 6 → (3, 6)

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}2x-y=0&\text{add y to both sides}\\3x-2y=-3\end{array}\right\\\\\left\{\begin{array}{ccc}2x=y&\to y=2x&(1)\\3x-2y=-3&&(2)\end{array}\right\\\\\\\text{Substitute (1) to (2):}\\\\3x-2(2x)=-3\\3x-4x=-3\\-x=-3\qquad\text{change the signs}\\\boxed{x=3}\\\\\text{Put the value of x to (1)}:\\\\y=2(3)\\\boxed{y=6}[/tex]

Answer Link

Otras preguntas

3. Quadrilateral PQRS is a parallelogram. If m5 = 64, then m1 + m2 + m3 + m4 = ______ A.64 B.128 C.192 D. Impossible to tell
They are talking about the book To Kill a Mockingbird Probably nobody will do this and thats ok I’m just giving it a shot cause this is due today <3
How much is 13 part of 6,918?
if you live in new york city or france. please tell me what it’s like?
(please helpp!!) Which statement best completes the diagram?
Almonds are a member of the peach family
11 ^ 2 power equals what
Please help me answer this!! I am timed!
Which of the following is true of the citizens in the United Kingdom? A. Citizens have the power to elect the Prime Minister. B. Citizens have the power to
Explain how John Marshall helped to develop the meaning of the Constitution in Dartmouth College v. Woodward? Please dont steal points..thanks!!