steph135
steph135 steph135
  • 01-12-2016
  • Mathematics
contestada

I need help. again. I am trying to solve each system of the equations. BTW I am in pre algebra. thank u

I need help again I am trying to solve each system of the equations BTW I am in pre algebra thank u class=

Respuesta :

lizzzagoddess
lizzzagoddess lizzzagoddess
  • 01-12-2016
2y = 27 + 4x 

Is this what you need?
Answer Link
xman7373
xman7373 xman7373
  • 01-12-2016
Same idea here as last time.
You have a y-value, substitute it in the problem.
y=x+12
4x+2y=27
4x+2(x+12)=27
4x+2x+24=27
6x+24=27
-24      -24
6x=3
/6
x=.5

plug back in
y=(.5)+12
y=12.5

final answer:
x=.5,y=12.5
Answer Link

Otras preguntas

what would you expect from an exothermic reaction
The sum of 8 and 5 times a number is 43. Which equation below can be used to find the unknown number?
do any body know how to add a+50
Which sentence below carries the strongest connotative associations? a. The milk was rancid. b. The milk had soured. c. The milk had gotten old. d. The milk
Brian has given up looking for a job. He has searched for more than a year and does not believe that a job for him exists. He is _____ in the unemployment rate.
how many roots do the following equations have? -12x^2 - 25x+5 +x^3=0
Marty wants to plant grass in a rectangular section of his backyard. The section where he wants grass measures 6.62 meters by 4.55 meters. What is the area o
What effect did factories have on the population of cities on the 1800s?
I have tried hard to get good photographs of my friends which word is the adverb
What organization did President Wilson create in order to influence public opinion during World War I? a. the Federal Bureau of Investigation b. the Committee