MATHEMATICS HIGH SCHOOL

2x-3y=-143x-2y=-6
if (x,y) is a solution to the system of equations above, what is the value of x-y?
A)-20
B)-8
C)-4
D)8
can you show your work please

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

The given system of equations :

$2x-3y=-14.............................(1)\n3x-2y=-6.........................(2)$

Multiply equation (1) with 3 and equation (2) with 2 , we get

$6x-9y=-42.............................(3)\n6x-4y=-12.........................(4)$

Now subtract equation (4) from equation (3), we get

$5y=30\n\n\Rightarrow\ y=6$

Substitute the value of y in equation (1), we get

$2x-3(6)=-14\n\n\Rightarrow\ 2x=-14+18\n\n\Rightarrwo\ 2x=4\n\n\Rightarrow\ x=2$

Hence, the solution of the system : (x,y)=(2,6)

Now, consider $x-y$ and substitute the value of x and y , we get

$2-6=-4$

Answer 2

Answer:

The solution to the equation is x - y = -4

Given data ,

To solve the system of equations, we can use the method of substitution or elimination. Let's use the method of elimination:

Multiply the first equation by 3 and the second equation by 2 to make the coefficients of x in both equations equal:

(3)(2x-3y) = (3)(-14)

(2)(3x-2y) = (2)(-6)

Simplifying these equations gives:

6x-9y = -42

6x-4y = -12

Now, subtract the second equation from the first equation:

(6x-9y) - (6x-4y) = (-42) - (-12)

-5y = -30

Divide both sides by -5:

y = 6

Substitute this value of y back into one of the original equations, let's use the first equation:

2x - 3(6) = -14

2x - 18 = -14

2x = 4

x = 2

Now , the value of x - y is given by

A = x - y

A = 2 - 6

A = -4

Hence , the equation is solved

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What is the value of x?

7
72√
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Answers

we know that

sin 45=opposite side/hypotenuse
opposite side=7√2
hypotenuse=x

sin 45=7√2/x--------> x=7√2/sin 45

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so
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the answer is
the value of x is 14

The value of x in the figure would be 14. Option 3.

Trigonometry problem

To get x, we can use the following formula:

Sine 45 = opposite/hypotenuse

In this case:

opposite = 7√2

hypotenuse = x

Thus:

Sine 45 = 7√2/x

x = 7√2/sine 45

= 7√2/√2/2

= 7√2 x 2/√2

= 14

In other words, the value of x is 14.

More on trigonometry can be found here: brainly.com/question/14478957

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Is 8/4 equivalent to 10/5?

Answers

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So, yes.

Answer:

yea

Step-by-step explanation:

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How is this a question did you re word it

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Answers

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Answer:

Step-by-step explanation:

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