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ELEN [110]
2 years ago
15

Solve the system of equations below by elimination. Write your answer as an ordered pair. e.g. (2,3)

Mathematics
2 answers:
Ray Of Light [21]2 years ago
7 0
(45,35)
hope this helps
Lyrx [107]2 years ago
4 0

Answer:

(45,35)

Step-by-step explanation:

1 - Stack the equations on top of each other

3x - 4y = -5

4x + 4y = 40

2 - We can eliminate by subtracting the bottom equation from the top equation

 3x - 4y = -5

- 4x - 4y = 40

3 - The y's cancel out, leaving us with...

 3x = -5

- 4x = 40

4 - Continue simplifying

-1x = -45

5 - We can switch the -1x with -x to make things simple

-x = -45

6 - Positize (make it positive) the statement

x = 45

7 - Halfway there! Substitute the x value into one of the equations

(3 * 45) - 4y = -5

8 - Solve

135 - 4y = -5

Minus 135 on both sides

-4y = -140

Divide by -4 on both sides

y = 35

9 - Here is your answer!!

x = 45

y = 35

(45,35)

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Hitman42 [59]

Given the points:

(x, y) ==> (-2, 4)

slope, m = 3

To write the slope intercept form, use the form below:

y = mx + b

Where m = slope and b = y-intercept.

Now, substitute -2 for x, 4 for y, and m for 3 in the equation above to solve for b.

We have:

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10 = b

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y = 3x + 10

ANSWER:

y = 3x + 10

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1 year ago
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Answer:

x = 10.3

Step-by-step explanation:

x + 24. 5 = 34.8

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x = 10.3

Check your answer:

x + 24. 5 = 34.8

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Hope this helps!

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