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 :)

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