eliseva
eliseva eliseva
  • 24-01-2021
  • Mathematics
contestada

HELP ASAP

Solve the system of equations
X + 3y = -20 and -4x - 4y=0 by combining the equations

Respuesta :

LuisaSosa
LuisaSosa LuisaSosa
  • 24-01-2021

Answer:

x=10 and y=-10

Step-by-step explanation:

first pick for what you want to solve for first, in this case I picked y

so I put them for subtraction and i hade to multiply the first equation by 4 so I could cancel my X's and I just solved for y

then I plugged in my answer to the first equation, you can pick any of the 2 equations, and I solved for x

Ver imagen LuisaSosa
Answer Link

Otras preguntas

resources are an integral part of human survival.yet indiscriminate use of them by humans has led to a crisis situation."discuss the above ststement in light of
do you know 10(55-1000)/90+2=?
Round 1.069 to the nearest tenth
Find the 6th term in the expanded form of the equation (2x+y)^9
What different peoples contributed to the cultures of Spain and Portugalit has to be five different peoples
how do u express a ratio as a decimal
You have 5 pounds and 10 ounces of laundry. Your washer has a capacity of 7 pounds. How many more ounces of laundry would you need to make a full load?
Factor by grouping:4-12r+9r^2i know the answer is (2-3r)^2Can anyone explain to me how it is?
what is the gcf and lcm of 390 and 250
Georges Cuvier's discovery of fossils of Irish elk and giant ground sloth: