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Nonamiya [84]
3 years ago
9

Arrange the steps to solve this system of linear equations in the correct sequence. Screenshot included. (Please help)

Mathematics
2 answers:
Oduvanchick [21]3 years ago
6 0

Answer:

Step-by-step explanation:

Given the system of linear equation

x+y=-2... 1

2x-3y=-9... 2

The following steps are to be followed to get the x variable.

Step 1:

First we need to eliminate one out of the two variables.

To do this:

Multiply the first equation by 3 to have

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

3x+3y = -6

Step 2:

Add 3x+3y = -6 obtained in step 1. to equation 2 given (2x-3y=-9) and solve for x

Adding up we have:

5x = -6+(-9)

5x = -15

x = -15/5

x = -3

Step 3:

Substitute the value of x into the first equation (x+y = -2) to get y = 1

-3+y = -2

y = -2+3

y = 1

Step 4:

The solution to the system of equation is (-3,1)

Leya [2.2K]3 years ago
5 0
The answer to the question

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2 years ago
Read 2 more answers
In the triangle below, the value of a is 12.6.<br><br> True<br><br> False
aev [14]

Answer:

True

Step-by-step explanation:

Formula

Tan(x) = opposite / adjacent

Givens

x = 42

adjacent = 14

opposite = ?

Solution

Tan(42) = opp/14                     Find tan(42)

Tan(42) = 0.900404

0.900404 = opp/ 14                Multiply both sides by 14

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7 0
3 years ago
Can someone please help me and show work too. If you can thank you
djyliett [7]

Answer:

3n-7

Step-by-step explanation:

8 0
2 years ago
1 Solve the compound inequality 4x&gt;-16 or 6x &lt;-48<br>​
Yuliya22 [10]

Answer:

Step-by-step explanation:

4x > -16 reduces to x > -4:  All numbers greater than x = -4 (shaded area to the right of -4).

6x < -48 reduces to x < -8:  All numbers to the left of -8 (shaded area to the left of -8).

Solution:  (-infinity, -4) ∪ (-8, infinity)

The number line between -8 and -4 is not part of the solution set (is not shaded or darkened)

Draw an open circle at -8 and extend an arrow to the left of this circle.  Then draw an open circle at -4 and extend an arrow to the right of this circle.

5 0
2 years ago
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