michelle202 michelle202
  • 02-02-2018
  • Mathematics
contestada

How do you solve these systems by elimination level 3

How do you solve these systems by elimination level 3 class=

Respuesta :

anchitthawi
anchitthawi anchitthawi
  • 02-02-2018
x+y = -3 ---(1)
5x-2y = -50 ---(2)

5x+5y = -15 ---(3) (multiplied (1) by 5)
5y-(-2y) = -15-(-50) ((3)-(2))
7y = 35
so y = 5

then x+5 = -3
so x = -3-5 = -8
Answer Link

Otras preguntas

Can being sick make your heart race?
In the early 19th century, Americans sought to resolve their political disputes through compromise, yet by 1860 this no longer seemed possible. Analyze the reas
What is the fluid that fills the nucleus called?
If the label says "made with active cultures," are we always getting the benefits of active bacterial cultures? A) Yes, since the yogurt had to be made with liv
-3x-8y=20 -5x+y=19 substitute
grain is stored in cylindrical structures called silos. which is the best estimate for the volume of a silo with a diameter of 12.3 feet and a height of 25 feet
How many children did king John have
WHICH COUNTRY CONTROLLED THE OREGON TERRITORY AT THIS TIME? AND IN WHAT YEAR WAS TEXAS ANNEXED TO THE U.S.?
what were the states that were later carved out of land brought into the Union by the Louisiana Purchase
400 reduced by 3 times my age is 163. What is his age?