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Veronika [31]
3 years ago
9

3x - y = 7 y= 2x +2 What’s the answer

Mathematics
1 answer:
ElenaW [278]3 years ago
6 0

Answer:

y=20,x=9

When doing problems like this it is important to always note: whatever you do to one side of the = sign you have to do to the other side.

Step-by-step explanation:

For this problem it helps that they already give you what y equals to so you can plug y in the top equation to figure out what x is. See attachment for step by step process

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Alvin is 15 younger than elga the sum of their age is 27 what is elga age
zloy xaker [14]

Answer:

27 years old

Step-by-step explanation:

Let Alvin's age be x and Elga's age is y:

y - x = 15

x + y = 27

2y = 42 (use elimination method)

y = 21

x = 6 (plug it back into either equation)

Therefore Alvin is 6 and Elga is 27

7 0
3 years ago
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Which of the following is an odd function?
madreJ [45]

Answer:

Step-by-step explanation:

f(x) = x is an odd function; the power of x is x^1.

f(x) = -x is also an odd function.

7 0
3 years ago
An employee worked for 8 hours on 2 days, 6 hours on 1 day, and 4 hours on 2 day
choli [55]

Answer:

A) 6.0

Step-by-step explanation:

First, total amount of hours, since average is sum of the numbers by how many numbers there is.

Day 1=8x2 hr

Day 2=6x1 hr

Day 3=4x2 hr

which is, 16+6+8=30

then divide 30 by how many days there is, which is 5 days.

30/5=6

5 0
2 years ago
10.
Pie

Answer:

e find Ad. Explain your answer

4 0
3 years ago
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8x-19 = -12x+61 What is x?
olasank [31]

Answer:

x is 4

Step-by-step explanation:

Step one: Add 12x to both sides-

8x-19+12x=-12x+61+12x

20x-19=61

Step 2: add 19 to both sides

20x -19+19=61+19

20x=80

Step 3: divide both sides by 20

20x/20=80/20

x=4

3 0
3 years ago
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