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3 years ago

The sum of two numbers is 12. The difference of the same two numbers is −4. Find the two numbers.

Mathematics

2 answers:

Amanda [17]3 years ago

8 0

Answer: x = 4, y = 8

Step-by-step explanation:

Let the two numbers be x and y

sum of the two numbers will be

x + y = 12 ------------------------------1

Difference of the two numbers

x - y = -4 ----------------------------- 2

Now, to find the two numbers , we solve equation 1 & 2 together

x + y = 12

x - y = -4

we now add the two equations to eliminate y

2x = 8

x = 4. Now to find the value of y, we substitute for x in any of the equation above

x + y = 12

4 + y = 12

y = 12 - 4

y = 8

Butoxors [25]3 years ago

7 0

Answer:

4 and 8

Step-by-step explanation:

Let 'a' represent one of the numbers. Then the other is 12-a, and their difference is ...

a - (12-a) = -4

2a = 8 . . . . add 12

a = 4 . . . . . divide by 2

12-a = 8 . . . . find the other number

The two numbers are 4 and 8.

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3 years ago

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2 years ago

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3 years ago

What is 6/13 rounded to the nearest half?

prohojiy [21]

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3 years ago

Read 2 more answers

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Tamiku [17]

Answer:

Left on the x-axis

Step-by-step explanation:

The opposite of the coefficient's amount of units is how much the graph will be moved.

Table comparisons

g(x)=|x+4|

x 1 -2 -4

y 5 2 0

Underlined is the x-int of the equation.

f(x)=|x|

x 1 0 -1 3

y 1 0 1 3

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4 years ago

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