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

What is the balance for £4500 invested for 2 years at 4% per annum
Living cells use ____ as their main source of energy.
how is area found in a shape
Factor the expression. 15n−18 Enter your answers in the boxes. ( )
A tax that can be passed onto someone else is known as a/an _______ tax. A. indirect B. quarterly C. personal income D. direct
Which of the following is a step in paraphrasing? Skim the original information to get a sense of what it is about. Select a few key words to change to your ow
Senator Crittenden's compromise intended to prevent _____. A) Jefferson Davis from becoming the Confederate president B) Lincoln from being elected president
Before the emancipation proclamation enslaved african americans who were captured by union forces were often treated as
_______ and _______ are located in the nucleus of the atom, while _______ exist in areas of probability around the nucleus. A. Neutrons; electrons; protons
What is a medulla? what do forensic scientists use this for?