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

A study of the amount of time it takes a specialist to repair a mobile MRI shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 32 broke

5/6 of all the money in Salma's bank account is ₹55,000. how much money does Salma have in her bank account?please answer

After mitosis each identical daughter cell has a complete set of:.

3. Describe the impact of scarcity on economic decision making. What happens when products and resources become less available? How might this affect the incent

-2 1/2*3 1/3= What does this equal to

In the early 19th century, when Nathaniel Hawthorne wrote The Scarlet Letter, Americans had mixed feelings about the religious and philosophical legacy left by

Is this right if not please tell me explanation

Botev is the highest peak of which mountain range?.

Do experienced artists with reputations for creating powerful images rely mostly on outlines in their works of art

graph the following quadratic equation: f (x) = x^2 + 6x + 5