impoorsoimher impoorsoimher

26-04-2022
Mathematics

contestada

Solve the system by substitution

Question 1)
X=2x
X-y=9

Question 2
Y= -3x
4x -2y= -20

Solve either or or both doesn’t matter

Respuesta :

Samuraizk Samuraizk

26-04-2022

Answer:

I think its:

Q1= x=(9+y)/2

Q2= x=(-20-6xy)/4

Step-by-step explanation:

Q1)

X-y=9

2x-y=9

2x=9+y

x=(9+y)/2

Q2)

4x-2y=-20

4x-2(-3x)=-20

4x+6xy=-20

4x=-20-6xy

x=(-20-6xy)/4

Answer Link

Otras preguntas

Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. Please explain how you got

Solve by completing the square x^2-2x-5=0

List all the Commonwealth Games mascots.

Suppose you have d dollars in your bank account. You spent 22 but have at least 28 left. How much money did you have initially. Write and solve an inequality th

THE FIRST INDIAN WOMAN TO BECOME SPEAKER OF A STATE ASSEMBLY IN INDIA

simplify the expression a)square root of 45 b)square root of 54 c)square root of 16/25

Looking Back At The Last Ten Years Of Your Life Describe The Events That Have Been Significant In Shaping Your Personality. Essays .

On Monday, it took Helen 3 hours to do a page of science homework exercises. The next day she did the same number of exercises in 2 hours. If her average rate o

Jack had 50 sweets he dropped 6 and gave away 4 and cut 7 in half how many did he have?

Is there a diet that can cure cancer