sidneybean2002
sidneybean2002 sidneybean2002
  • 14-05-2020
  • Mathematics
contestada

Solve the system of equations by using substitution.
6r + 7s = -1
2r + 4s = -12


a. (-4,-8)
b. (-8,-4)
c. (-7, 8)
d. (8, -7)​

Respuesta :

annaboglino
annaboglino annaboglino
  • 14-05-2020

Answer:

d. (8,-7)

Step-by-step explanation:

First solve for one of the variables, I chose r so there were no fractions. Then plug r into the other equation and solve for s. then plug your solved s value into the equation in which you solved for r to obtain the value of r. (r,s) = (8,-7)

Ver imagen annaboglino
Answer Link

Otras preguntas

can someone help pleaseeeeeee
How many times larger than 2x10^2 is 2x10^8
A ______ is a factor in an experiment that can be manipulated. Correlation. Variable. Placebo. Constant.
What is manifest destiny
Which answer choice is it?
Explain popular sovernty
Why is there no one clear definition for a political conservative? Conservatives do not want to be defined Conservatives are too complex to define Conservatives
The kind of exercise that is done. Exercise that is specific to the muscles being worked. A. Time B. type C. Frequency D. Intensity
A student take out a simple interest loan for $2000.00 for 6 month at a rate of 6.50%. Find the interest the student must pay
The product of two mixed numbers x and y is 10. If x= _ 2/3 and y=_ 3/4 , find x and y?