babygirl2156
babygirl2156 babygirl2156
  • 12-10-2020
  • Mathematics
contestada

Solve the system:
4x – 3y = -21
X=-y-14

Respuesta :

ihateschoolsomuch53
ihateschoolsomuch53 ihateschoolsomuch53
  • 12-10-2020

Answer:

The solution for the system of equations is

x=2,y=−2

Explanation:

4x−3y=14.....equation (1)

y=−3x+4.....equation (2)

Solving by substitution

Substituting equation 2 in equation 1

4x−3⋅(−3x+4)=14

4x+9x−12=14

13x=14+12

13x=26

x=2

Finding y by substituting x in equation 1

4x−3y=14

4⋅2−3y=14

8−3y=14

8−14=3y

3y=−6

y=−2

Answer Link
lisaneedham
lisaneedham lisaneedham
  • 12-10-2020

Answer:X=−4x/3−21

                 y=4x/3+7

Step-by-step explanation:

Answer Link

Otras preguntas

Completa la siguiente tabla con las formas apropiadas de los verbos. CEPILLARSE ACOSTARSE Yo me acuesto Tú te acuestas Usted/Él/Ella se cepilla Nosotros nos cep
Which of the following cases is the BEST example of an instance of social contagion? A shopper notices a sign in the electronics store saying that supplies of a
Which interpretation for the given expression is correct?[tex]5(3x-4)x^{2}[/tex]
12 is 60 precent of what number​
What is the effect on the graph of the function f(x)=x^2 is changed to f(x+8)?
Sports medicine is what medicine
Cardiovascular endurance is the ability to?
A scatter plot relates the weight (w) in pounds of an order to the charge (c) in dollars to ship the order. The equation c = 0.35w + 7 describes the line of bes
I need help on this kinda lost
lusia hiked 7 miles of a 21 mile trail what percent of the trail did she hike