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Contact [7]
3 years ago
11

Solve the following equations using any method: 4x-y=3 -4x+y=-3

Mathematics
1 answer:
harkovskaia [24]3 years ago
4 0
The second equation balances out to -3=-3
And the first one balances out as 3=3 so I have no clue

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Please help asap 25 pts
devlian [24]
The answer is B hope this would help you
7 0
3 years ago
Solve the system of equations. y = -5x + 24 y = 4x - 21 a. ( -5, -1) c. ( -1, 5) b. ( 5, -1) d. No solution
Svetlanka [38]

y = -5x + 24

y = 4x - 21

Since both of these equations are equal to Y, theyre equal to each other.

So we can make an equation with y = -5x + 24 in one side and y = 4x - 21 on the other.

-5x + 24 = 4x - 21

Now in order to get the value of x we need to isolate it in one side of the equation. We can do this by subtracting 24 from both sides of the equation:

-5x + 24 - 24 = 4x - 21 - 24

-5x = 4x - 45

Now we subtract 4x from both sides so the 4x shift to the other side

-5x - 4x = 4x - 4x - 45

-9x = -45

Finally divide both sides by -9 so x is by itself

(-9)÷(-9x) = -(45)÷(-9)

x = 5

Since we did all of this to BOTH sides of the equation, both sides are still equal to each other and the equation still is true.

Now apply x = 5 to either of the initial equations to find the value of Y

y = -5x + 24 or y = 4x - 21

(I'll do both but u only need one)

y = -5(5) + 24

y = -25 + 24

y = -1

y = 4(5) - 21

y = 20 - 21

y = -1

Either way, X is 5 and Y is -1

Answer (5, -1)

5 0
3 years ago
Someone help :) please
maxonik [38]

Answer:

The line between the points C and E is parallel to the line between the points F and B

The line between the points A and E is parallel to the line between the points B and D

The line between the points A and C is parallel to the line between the points F and D

3 0
3 years ago
The function g(t) = - 16t2 + vt + h represents the height of an object, g, in feet, above the ground in relation to the time, t,
timurjin [86]

Answer:

g(t) = -16t^2+80t.

Step-by-step explanation:

We are given that v=80 and h=0 (because that's the ground), so substituting that into g(t) = -16t^2+vt+h gives g(t) = -16t^2+80t.

5 0
2 years ago
Read 2 more answers
the perimeter of a rectangle is 8 (2x+1) inches. If the length of the sides of the rectangle are 3x +4 inches and 4x+3 inches, w
EleoNora [17]
The sides in parentheses times 2 for each is equal to the perimeter expression.

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3 years ago
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