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antiseptic1488 [7]
3 years ago
8

Help ASAP I need the answers please

Mathematics
1 answer:
Maksim231197 [3]3 years ago
3 0

Answer:

chvh hcxitxixgo oycoxcj oxgc xig xig icg

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Y=4x and 3x+y=-21. Substitute
gizmo_the_mogwai [7]

value of x= -3 and value of y = -12

Solution set is (-3,-12)

Step-by-step explanation:

We need to solve the system of equations using substitution

The system of equations are:

y=4x\\3x+y=-21

Solving:

Let

y=4x\,\,eq(1)\\3x+y=-21\,\,eq(2)

Solving:

Putting value of y from equation 1 into equation 2

3x+y=-21\\3x+4x=-21\\7x=-21\\x=-21/7\\x=-3

So, value of x = -3

Now, putting value of x into equation 1 and find value of y

y=4x\\y=4(-3)\\y=-12

Value of y = -12

So, value of x= -3 and value of y = -12

Solution set is (-3,-12)

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

5 0
3 years ago
Kathy goes to a Halloween store that is closing for the season, so everything is 60% off of the original price.
julsineya [31]

Answer:D

Step-by-step explanation:

7 0
2 years ago
Viết các lũy thừa sau dưới dạng một lũy thừa hoặc các tích các lũy thừa có số nguyên và số nguyên A.8 mũ 2 B. 654​
Semmy [17]

Step-by-step explanation:

câu trả lời là trong hình ảnh trên

5 0
2 years ago
Twice the sum of a number and 3 is equal to three times the difference of the number and 6. Find the number.
vfiekz [6]

Answer: 5

Step-by-step explanation:

7 0
2 years ago
if i earned 250$ a week and put 25% away into savings, how much would i have in 3 years in my savings?
OlgaM077 [116]

Answer:

187.5 is what u have left each week after takign away the 25%.

Step-by-step explanation:

Hope this helps? :)

7 0
2 years ago
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