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

rename the number 25,600 = hundreds
solve this proportion: 1/c+5=2/3
Which digit in the number 53,941 would be changed to form 58,941? How would the value of 53,941 change?
Evaluate 14.3 + 8.2 x 30
Angela can swim 1,700 meters in 40 minutes. What is Angela's unit rate
Their married life was not since it was fraught with bitter fighting and arguments. (A) nubile (B) tranquil (C) obvious (D) cogent (E) imminent
how do oceanographers get to the bottom of the ocean?
A large box of crayons holds 60crayons.There 10 crayons in each row how many rows are there ? What's the situation and the equation?
The first light bulb had a filament made of _____.
22/100 in simplest form?