delayedfriday delayedfriday
  • 02-03-2016
  • Mathematics
contestada

Solve each system using substitution:
2x+2y=38
y=x+3

Respuesta :

hworonie hworonie
  • 02-03-2016
2x+2(x+3)=38
2x+2x+6=38
4x+6=38
4x=32
x=8

y=8+3
y=11
Answer Link
Exvited
Exvited Exvited
  • 02-03-2016
[tex]2x+2y=38 \\ y = x + 3 \\ \\ \\ 2x+ 2 (x + 3) = 38 \\ \\ 2x + 2(x + 3) \\ \\ 2x + 2x + 6 \\ \\ 4x + 6 \\ \\ 4x + 6 = 38 \\ \\ 4x + 6 - 6 = 38 - 6 \\ \\ 4x = 32 \\ \\ \frac{4x}{4} = \frac{32}{4} \\ \\ x = 8 \\ \\ y = 11 \\ \\ [/tex]

The final result is: x = 8 and y = 11.
Answer Link

Otras preguntas

The producer of the news station posted an article about the high school's football championship ceremoney on a new website. The website had 500 views after fou
why does it takes 3 copies of 1/6 to show the same amount as 1copy of 1 / 2
What type of lifestyle did the Mongols live? A. pastoral nomadic B. hunter-gatherer C. agricultural D. sedentary
What is the greatest whole number rounded to 2,500
If 2 over 7 of a ton of concrete covers 7 over 8 of a wall, how many tons of concrete are required to cover the entire wall?
7. A ___________ is a larger, more inclusive category than kingdom. * class family domain phylum
sum of 8 and a number is 5 less than 70
In the human body which system functions in detecting and responding to stimuli? A. Endocrine B. Circulatory C. Muscular D. Nervous
why did the Allies decide to invade North Africa and italy
what is 0.083 repeting as a percentage?