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

What is the simplified answer to the problem 9+5r-9r??
Express the exact value of csc 60 degrees with a rational denominator?
what are the 2 types of behavioral responses??
how are airplanes artificially pressurized?
why are fossils of clams more numerous than those if the worms or cnidarians ?
how do you convert mol dm-3 to gdm-3 and vice versa
How does a Retinal Scan Work?
When an object is charged, what type of subatomic particle is transferred between objects?
If y^8 = 4 and y^7 = 3/x, what is the value of y in terms of x? (A) 4x/3 (B) 3x/4 (C) 4/x (D) x/4 (E) 12/x
How does a Retinal Scan Work?