fisherjake510 fisherjake510
  • 01-08-2017
  • Mathematics
contestada

Solve the system using elimination. x + 2y = –6 3x + 8y = –20

Respuesta :

texaschic101
texaschic101 texaschic101
  • 01-08-2017
x + 2y = -6....multiply by -3
3x + 8y = -20
---------------
-3x - 6y = 18 (result of multiplying by -3)
3x + 8y = -20
--------------add
2y = -2
y = -2/2
y = -1 <===

x + 2y = -6
x + 2(-1) = -6
x - 2 = -6
x = -6 + 2
x = -4 <==

solution is (-4,-1)
Answer Link

Otras preguntas

Moral Principles A. Fiscal B. Tariff C. Ethics D. Appreciation
Determine x when y =144?
What is 2/3 ÷ 1/8? a. 3/16 b. 5 1/3 c. 1/12 d. 3/11?
the value of the 6 digit in 64,953 is 10 times the value of the digital in which of the following 56,831 269,459 635,908. 810,600
what is the author saying about dreams that are deferred (postponed)? they might blossom like fruit. they might grow and become larger. they might change for th
x= -19 (-7,-2) perpendicular line
Shipping papers are required for all hazardous material shipments. TRUE or FALSE.
What is a googleplex?
Why did the framers of the U.S. Constitution set up a system of government with separation of powers and checks and balances? A. to decrease individual rights f
A boat takes 8 hours to go 6 miles upstream and come back to the starting point. If the speed of the boat is 4 miles per hour in still water, what is the rate o