chlwodnsn chlwodnsn
  • 12-02-2021
  • Mathematics
contestada

bob wants to sub 3x + y = 13 into 4x +3y = 6 he needs to do what to get this

Respuesta :

imawolf
imawolf imawolf
  • 12-02-2021

Answer:

x = 6.6, y = -6.8

Step-by-step explanation:

Subtract  3 x  from both sides of the equation.

y = 13 - 3x

4x + 3y = 6

Replace all occurrences of  y  with  13  −  3 x  in each equation.

-5x + 39 = 6

y = 13 - 3x

Solve for  x  in the first equation.

x = [tex]\frac{33}{5}[/tex] or 6.6

Replace all occurrences of  x  with 6.6  in each equation.

y = [tex]-\frac{34}{5}[/tex] or - 6.8

hope this helps, good luck :)

Answer Link

Otras preguntas

As a hurricane approaches, the air temperature changes −7.8°F every hour. Which value represents the change in air temperature over 1.25 hours?
HELP ME WITH THIS PLZ:)))))4) Andrew has been hired to paint the numbers 1 through 100 on apartment building doors. How many times will he paint the number 8?​
does geography help or hurt an empire?
jennifer has a bag of chips that contains 2 red chips and 1 black chips.
how does a tropical cyclone form​
Solve similar triangles (advanced)
A student pushes horizontally on a book with a force of 2 N, which causes the book to slide at a constant velocity. What is the force of friction on the book?
Please answer this for me! 8 (6 - 4) = 12 =
how do i show the value of the expression, and where to group symbols so the value equals 45
Need help ASAP!!!!! I’m not sure what to do