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

ron and hermione fighted at hogwarts and out of it, why the hell did they get married? this is exactly why i don't understand j.k rowling
Her visitor, she saw as she opened the door, was seated in the armchair before the fire, dozing it would seem, with his bandaged head drooping on one side. The
Evaluate the expression (65+(1/5•5)+6) divided by 9
in lord of the flies how did the boys’ environment contribute to their actions? Are they animals?
round 4.2894 to two decimals
HURRY I will give you brainiest! Which of these is a simplified form of the equation 7y + 7 = 9 + 2y + 2y? a.3y = 2 b.7y = 6 c.11y = 16 d.4y = 16
a system of equations is shown below 5x +2y =-15 2x - 2y =-6 what is the solution to the problem
The creation myths of Sumer and Greece share a common character named: chaos Zeus Cronos Tiamat
Angle 3 and angle 4 are supplementary angles. Angle 3 is 88°. What is the measure of angle 4?
Which describes a type of tax that people pay on money they earn?