Question

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

Answer 1

Answer:

Point form : (- 2/3, 10/9)

Equation form : x=- 2/3, y=10/9

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.

I hope this helps you out. :)

Answer 2

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