ashubert1961
ashubert1961 ashubert1961
  • 20-09-2020
  • Mathematics
contestada

Solving Linear Systems: Using Substitution
x=3y-4
3y - 4x = 6
someone pls help

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 20-09-2020

Answer:

x = -2/3

y = 10/9

Step-by-step explanation:

3y - 4x = 6

x=3y-4

Substitute the second equation into the first for x

3y - 4( 3y-4) =6

3y - 12y +16 = 6

Combine like terms

-9y +16 = 6

Subtract 16 from each side

-9y +16-16 = 6-16

-9y = -10

Divide by -9

-9y/-9 = -10/-9

y = 10/9

x = 3y -4

x =3(10/9) -4

 =10/3 - 12/3

  =-2/3

Answer Link

Otras preguntas

Who enforced national laws during the period of the Articles of Confederation?
what is 3 thousand 16 tens and 7 ones in standard form
What is the numerical expression for 21 increased by 14
How to write 32,005,008 in expanded form
which of the following groups of people is affected by economic laws and rules
In Confucianism's four-class system, which group sat at the top of the hierarchy?
Which one of the following sentences contains a coordinating conjunction? A. Howard was brave, and he was strong. B. Bobby Jo keeps trying, although she'
Which element has atoms that can form halide ions? (1) iodine (3) strontium (2) silver (4) xenon
Which expressions show how 8 • 54 can be rewritten using the distributive property? Choose all answers that are correct. A. 8 • 50 + 4 B. 8 • 50 + 8
i need help please anyone 10(x-2)+15=8x+7