giasienna14 giasienna14

02-02-2021
Mathematics

contestada

this is solving systems of equations by elimination, though I am a bit confused

this is solving systems of equations by elimination though I am a bit confused class=

Respuesta :

thebecks thebecks

02-02-2021

Answer:

x=7

y=-1

Step-by-step explanation:

4x+8y=20

-4x+2y=-30

8y=20-4x

y=(20-4x)/8

substitute

-4x+2(20-4x)/8=-30

-4x+(40-8x)/8=-30

-4x+5-x=-30

-5x=-35

x=7

4(7)+8y=20

8y=-8

y=-1

Answer Link

Otras preguntas

Production costs of producing one more unit of output are called

What is Kinectic energy ?

how did wood frogs develop the ability to freeze themselves during the winter

PLS HELP I WILL GIVE YOU 20 POINTS AND BRAINIEST!! Why was Paul a significant figure in Christianity? He helped spread Jesus' teachings to gentiles. He transl

A certain car depreciates about 15% each year. Write a function to model the depreciation in value for a car valued at $20,000.

Choose the expression that is equivalent to the one shown. (82)5

Why were people sent to internment camps during WWII?

Who is a gynaecologist

Jared bought one share of stock for $225. A. He sold the stock for a profit of $55. what was the selling price of the stock? B. The price of the stock dropped

Genetic inheritance is being studied in a certain species of plant in which orange flower color (O) is dominant to white (o) and round leaf shape (S) is dominan