cmsummerfield30
cmsummerfield30 cmsummerfield30
  • 01-10-2020
  • Mathematics
contestada

solve the system of linear equations by substitution.
2x-y=23
x-9=-1
( _ , _ )

Please if you can show me how to do it! thanks

Respuesta :

1400mycahglandry 1400mycahglandry
  • 01-10-2020

Answer: y=2x-23, x=8; (8, -7)

Step-by-step explanation:

First, arrange both equations in y=mx+b form and evaluate; y=2x-23 & x=8

Now, use x=8 to substitute the value into the y=2x-23 equation;

y=2(8)-23, this will give you a completed ordered pair;

(x=8, y=-7)

Hope this helps !

x+y=8+(-7)

=1

Answer Link

Otras preguntas

2. Jill swam 200 meters in 2 minutes 42 seconds. If each lap is 50 meters long, which is MOST LIKELY to be her time, in seconds, per lap?
¿Cuales eran las principales actividades económicas de la antigua Grecia?¿Qué productos se obtenían?
Which data set could be represented by the box plot shown below? I will mark brainliest!
What are the coordinates of the hole in the graph of the function f(x)? f(x)=x2+3x−28x+7
My little brother needs help and tbh I forgot all abt this
What are big ideas we can connect with the Fall of the Berlin Wall?
Put verb in brackets into the correct tense. Mix tense 1 they ----- ( drive ) to Manchester
How have the students become closer as friends? Chapters 15&16 Harbor Me by Jacqueline Woodson
some people claimed that traditional medicine is more effective in curing illnesses than modern medicines. do you agree or disagree with this statement? explain
Determine the equation of this circle. *