smichelle26 smichelle26
  • 04-02-2020
  • Mathematics
contestada

Please solve the following system of equations by
substitution.
y = 3x - 4 and 4x + 3y = 1

Respuesta :

profarouk profarouk
  • 04-02-2020

Answer:

(1 , -1)

Step-by-step explanation:

y = 3x - 4  (1)

4x + 3y = 1 (2)

if we substitute y by 3x - 4 in the second equation we get

4x + 3(3x-4) = 1 ⇒ 4x + 9x - 12 = 1 ⇒ 13x = 13 ⇒ x = 1

now ,we substitute x by 1 in the first equation

y = 3(1) - 4 = 3 - 4 = -1

Answer Link

Otras preguntas

A non-metal usually forms 2 covalent bonds in its compounds.How many electrons will it take in its valence shell?
if 120 marks is 60% what is full marks
how do you say 'im getting over you' in spanish
Name the two lines and the transversal that form each pair of angles
by hw much is the difference of 604 and 406.64 less than thier sum ?
How many counting numbers are between 30 and 65, not including 30 and 65?
if x = -3 calculate the value of: x3 + x
Brittany placed a cold piece of butter on a hot ear of corn. The butter began to melt. The butter melted when it came into contact with the corn because heat wa
The point (3,7) is reflected in the y axis. What are the coordinates of the transformed point?
if 120 marks is 60% what is full marks