gretaggustafson
gretaggustafson gretaggustafson
  • 01-04-2020
  • Mathematics
contestada

Solve question 3 (a and b)
— solve each system of equations by elimination.

Solve question 3 a and b solve each system of equations by elimination class=

Respuesta :

ghanami
ghanami ghanami
  • 01-04-2020

Answer:

Step-by-step explanation:

hello :

6x+5y=-20.....(*)

-6x-10y=25.....(**)

add(*) and(**) :  -5y=5    so y= -1

multiply (*) by 2   : 12x+10y=-40 ...(***)

now add(**) and (***) : 6x=-15   so x = -15/6 = -5/2

Answer Link

Otras preguntas

Research most clearly suggests that when organizations wish to increase retention they need to _____.
How did the northwest ordinance of 1787 affect the practice of slavery in the northwest territory?
what are some observable properties that can be used to identify these metals?
What is x if x•x•13=46
I have chosen 4 MYSTERY INTEGERS. At least one is positive and one is negative. Follow these clues to figure out my integers. BE SURE TO EXPLAIN YOUR REASONING
What are the four qualities of leadership that engender trust according to bennis and goldsmith?
The process that removes metabolic waste products from an organism is known as
One theme from "The Yellow Wallpaper" is that women played a lesser role in marriage during the 19th century. Which line from the passage best supports this the
se hizo realidad el sueño de macario
Quién __________ (participar) en las actividades?