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

Standing in the toy store, Holly spotted a vintage Barbie and had a memory of playing with her best friend in her basement. The __________ was so true-to-life,
Shade in the answer 100 PTS••It's a bit of work so that's why it's at 100 points. Read the directions and then find the exprsssion. I got confusing things. ( ti
Which of the following was the most basic reason that slavery spread throughout the Americas?
5y + 8 = 2y - 3x + 5 solve for y.
Proportion of us adults who own a cell phone. in a survey of 1006 us adults in 2014, 90% said they had a cell phone.
Help please pre calculus
What do Shania Twain, Celine Dion, and Bryan Adams have in common?
A certain shade of blue has a frequency of 7.03 × 1014 Hz. What is the energy of exactly one photon of this light?
You are considering two ways of financing a spring break vacation. you could put it on your credit​ card, at 17 % ​apr, compounded​ monthly, or borrow the money
f the polygon is translated 4 units down and 5 units right, what will the coordinates of the new image be