kaliaratliff
kaliaratliff kaliaratliff
  • 03-02-2022
  • Mathematics
contestada

Please HELP!!

Solve the system of linear equations by substitution

2x+3y=0
8x +9y =18

Respuesta :

AutumnBells
AutumnBells AutumnBells
  • 03-02-2022

Answer:

Step-by-step explanation:

Step 1:

Isolate x (1st Equation)

2x + 3y = 0

     - 3y = -3y

       2x = -3y

Step 2:

Divide both sides by 2

x = -3y/2

Step 3:

Replace the x from 8x with -3y/2 and Solve the equation

8(-3y/2) + 9y = 18

-12y + 9y = 18

-3y = 18

y = -6

Step 4:

Go back to the 1st equation and replace the y from 3y with -6. You are now solving for x. Solve the equation.
2x + 3(-6) = 0

2x - 18 = 0

    + 18 = +18

      2x = 18

x = 9

Step 5:

Write your final answer.

(x, y) = (9, -6)

Answer Link

Otras preguntas

Which two elements have the most similar chemical properties? (1) Be and Mg (3) Cl and Ar (2) Ca and Br (4) Na and P
As magma cools and crystallizes, minerals form in predictable patterns in a process known as A) fractional crystallization B) partial melting C) intrusion D) B
What problem makes public goods necessary?
My father was known as Light Horse Harry.
What conditions in Britain paved the way for the industrial revolution
Convert 84 degrees to radian measure
What are gametes? Give examples
Which compound is an unsaturated hydrocarbon? (1) hexanal (3) hexanoic acid (2) hexane (4) hexyne
According to Table I, which salt releases energy as it dissolves? (1) KNO3 (3) NH4NO3 (2) LiBr (4) NaCl
Which compound has hydrogen bonding between its molecules? (1) CH4 (3) KH (2) CaH2 (4) NH3