tacarter tacarter
  • 02-08-2018
  • Mathematics
contestada

A pair of equations is shown below:

y = 7x − 8
y = 5x − 2

Respuesta :

lublana
lublana lublana
  • 02-08-2018

Given equations are y = 7x − 8 and y = 5x − 2

We can solve them easily using substion.

Plug y = 7x − 8 into y = 5x − 2

7x − 8 = 5x − 2

or 7x − 5x =8 − 2

or 2x = 6

or 2x/2 = 6/2

or x=3

Now plug x=3 into any of given equations say y = 5x − 2

y = 5(3) − 2=15-2=13

Hence (3,13) is the final answer.

Answer Link

Otras preguntas

Solve:- x + 67 = 83 Thanks!
Exit Which of the following is a valid statement? A. Formal writing expects the writer to use only compound or complex sentences. B. Academic papers should nev
Can you give help me with question 15
why the fraction with a lesser denominator has larger pieces than the fraction with a greater denominator
What happens to water in the atmosphere as it rises? a. It evaporates. b. It condenses and forms clouds. c. It combines with other gases in the air. d. It is us
Identify the unnecessary adjective in the following sentence. A small trickle of water crept down the road. trickledownofsmallcreptroadtheawater
To buy both the green and the blue bikes would cost $1500. To buy the green and red bikes would cost $750. To buy all three bikes would cost $2000. how much doe
Identify the grammatically correct sentence below: a. These is good crackers. c. These apples ain’t got no fat. b. Johnny is the baddest guitar player. d. Those
One mole of O2 has approximately the same mass as one mile of
What does 2x plus 8 equal