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jeyben [28]
4 years ago
8

Examine the system of equations. y = –3x – 2, y = 7 The value of x is . The solution to this system of equations is .

Mathematics
2 answers:
rusak2 [61]4 years ago
7 0

Solution:

The value of x is -3.

The solution to the system of equation is x=-3, y=7

Explanation:

We have been given the system of equation

y=-3x-2 ......(1)\\y=7...............(2)

We solve this system of equation by substituting method.

On plugging the value of y from equation (2) in equation (1), we get

7=-3x-2

Add 2 to both sides of the equation

7+2=-3x\\ 9=3x

Now, divide both sides by -3, we get

\frac{9}{-3}=x

-3=x

Therefore, the value of x is -3.

And the solution to the system of equation is x=-3, y=7

joja [24]4 years ago
3 0
Hello!

You can substitute y into the other equation

7 = -3x - 2

Add 2 to both sides

9 = -3x

Divide both sides by -3

-3 = x

The answer is -3

Hope this helps!
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Answer:

x = 10

Step-by-step explanation:

The total measures of a circle must add up to 360°.  In the diagram given there are two angles that are not given, however, both of these should be equal to each other.  That means that the sum of the other two angles ('5x - 5' and 93°) must be equal to the other angle of the same measure (138°):

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3 years ago
Urgent help needed fast
Katena32 [7]

Answer:

Below

Step-by-step explanation:

You can use this formula to find the sum of an arithmetic series

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You need to find the number of terms in each series before using the formula

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a) 53 = 5 + (n - 1) 3

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Sn = 17 / 2 (5 + 53)

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c) -102 = 8 + (n - 1) -5

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Hope this helped! Best of luck <3

7 0
3 years ago
Solve for x. 3/x-1 - 1/x^-1=5/x-1<br><br> Please show all work
navik [9.2K]

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