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fgiga [73]
3 years ago
11

Solve for X PLEASE HELP!!

Mathematics
1 answer:
tester [92]3 years ago
3 0
U set ST and SR equal
7x + 24 = 115
7x = 91
x = 13
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I can't figure it out. <br>2x+2y=2<br>-4x+4y=12<br>​
koban [17]

Answer:

how to solve 2x+2y=2 , -4x+4y=12

this is  solving equations using substitution .... i have ALOT more but i juss dnt get this stuff

2x + 2y = 2      -4x + 4y = 12

x + y = 1

x = 1 - y

-4x + 4y = 12

-4(1 - y) + 4y = 12

(-4 + 4y) + 4y = 12

-4 + 8y = 12

8y = 16

y = 2

2x + 2y = 2

2x + 2(2) = 2

2x + 4 = 2

2x = -2

x = -1

Check.

-4x + 4y = 12

-4(-1) + 4(2) = 12

4 + 8 = 12

Answer: x = -1 and y = 2

Step-by-step explanation:

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2 years ago
How many ounces are in a 12 lb bag of potatoes​
Readme [11.4K]

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6 0
3 years ago
Can someone please help me?
bulgar [2K]

Solution:

<u>Given:</u>

  • 18 = 2b

<u>Solve the equation by isolating the variable.</u>

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The value of b is 9.

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2 years ago
What is the value of (-14^0)^-2?
Ainat [17]

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Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The mass of an empty container is 3/10kg. When the container is half filled with water, the mass becomes 1 1/10kg. What is the m
Nastasia [14]

Answer:

1.9 kg

Step-by-step explanation:

Empty container: 3/10 kg = 0.3 kg

Container half filled: 1 1/10 kg = 1.1 kg

Mass of water that fills it halfway: 1.1 kg - 0.3 kg = 0.8 kg

Mass of water that fills it completely: 2 * 0.8 kg = 1.6 kg

Mass of container completely filled with water: 0.3 kg + 1.6 kg = 1.9 kg

6 0
3 years ago
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