Terminal
Terminal Terminal
  • 01-02-2017
  • Mathematics
contestada

How would u solve this liner system?

y = -3x - 1
4x + 3y = 2
What is x and what is y??

Respuesta :

HomertheGenius
HomertheGenius HomertheGenius
  • 06-02-2017
We can solve it by substitution: y = - 3 x - 1.
So the 2nd equation becomes:
4 x + 3 * ( - 3 x - 1 ) = 2
4 x - 9 x - 3 = 2
- 5 x = 2 + 3
- 5 x = 5
x = 5 : ( - 5 ) = -  1
y = - 3 * ( - 1 ) - 1 = 3 - 1 = 2
Answer:  x = - 1,  y = 2.
Answer Link

Otras preguntas

Need help with question 2
There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 1/9 There are 45 marbles in total in the bag and eac
A car speeds up from rest to +20 m/s in 4 s. What is its acceleration?
I definitely need help with this difficult math problem. -7x+y^3+7x^3+6x-3y^3-2x^3+3x
help.................​
Help me out on this please !!
Today is so trash, please end my suffering lol
the price of a jacket was increased by 1000 to 6000. what was the percentage increase?​
Which expression can be used to convert 488 miles to yards? 1760yd A (488miles) 1mile ( B (488miles) ~ 1mile 1760yd О с (488miles) 5280yd 1mile D (488miles) Imi
(4x + 3)(4x - 3) Help pls