419037 419037
  • 02-04-2021
  • Mathematics
contestada

how to solve x=7y+3 and 9y-x=1 using subsituation method and showing work.

Respuesta :

s28045292
s28045292 s28045292
  • 02-04-2021

Answer:

x = 25/2

y = 3/2

Step-by-step explanation:

x = 7y + 3

9y - x = 1

9y- (7y + 3) = 0

2y - 3 = 0

2y = 3

y = 3/2

9(3/2) - x = 1

27/2 - x = 1

-x = -25/2

x = 25/2

Answer Link
Yang100
Yang100 Yang100
  • 02-04-2021

Answer:

x=17, y=2. (17, 2).

Step-by-step explanation:

x=7y+3

9y-x=1

----------

9y-(7y+3)=1

9y-7y-3=1

2y-3=1

2y=1+3

2y=4

y=4/2

y=2

x=7(2)+3

x=14+3

x=17

Answer Link

Otras preguntas

How is the non aggression pact related to appeasement
Given that the student is a female what is the probability that she consider's herself to be a "Liberal" ? Round your answer to three decimal places if necessar
Simplify x0 y-3/x2 y-1
How did the decision to raise interest rates contribute to Great Depression check all that apply
Please help me with this I have to do a test tomorrow!
noah goes to the store with $40 .he spend 38.60 on 13 bags of popcorn. how much one bag of popcorn cost ?
Answer these two math questions for me and you'll get points.
PLZ HELP ITS UGENT!! 1. What rights are protected by the 1st amendment (there are 5)? Are there any limitations? 2. What rights are afforded by the 2nd amendmen
Factor x2 − 7x + 8. (x + 8)(x − 1) Prime (x − 8)(x − 1) (x + 8)(x + 1)
How was Billy Graham an influential social leader in the United States