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Papessa [141]
3 years ago
7

Find the value of two numbers if their sum is 12 and their difference is 4

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0

x + y = 12

Equation 2: Difference:

x - y = 4

Solution:

x + y = 12

x - y = 4

-------------

Add the two equations together:

2x = 16

Divide both sides by 2:

x = 8

Solve for y:

Use equation 1 substituting for x:

x + y = 12

8 + y = 12

Subtract 8 from both sides:

y = 4

Answer:

one number is 8 and the other number is 4.

8 + 4 = 12

8 - 4 = 4

<h2><u>Mark as Brainliest</u></h2>
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A student wants to graph the function
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3 years ago
Please help 10 pts. 11!!
Olenka [21]

Answer:

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6 0
3 years ago
Which set of numbers is included in the solution set of 5-4x&lt;-7
Amanda [17]

Answer:

x > 3

Step-by-step explanation:

The inequality to solve is:

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We will solve this using same method as solving an equation. We will take numbers to one side and variables to another and multiply and divide accordingly.

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4 0
3 years ago
Parallel to y=-3x+4,xintercept at 4
Galina-37 [17]

Answer: Equation: y=−3x+12

Explanation:

The x-intercept means y=0andx=4

Use the equation:

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Add 3⋅4=12 to both sides:

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−12

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plz mark brainleist

7 0
3 years ago
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