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soldier1979 [14.2K]
3 years ago
7

Solve x + 3y = 9 3x – 3y = -13 (1 point)

Mathematics
1 answer:
Mariana [72]3 years ago
8 0

Answer:

The values of x and y to the given equations are x=-1 and y=\frac{10}{3}

The solution is (-1,\frac{10}{3})

Step-by-step explanation:

Given equations are x+3y=9\hfill (1)

and 3x-3y=-13\hfill (2)

to solve the given equations by elimination method :

Adding the given two equations (1) and (2) we get

x+3y=9

3x-3y=-13

_______________

4x=-4

x=-\frac{4}{4}

Therefore x=-1

Now substitute the value x=-1 in equation(1) we get

(-1)+3y=9

3y=9+1

y=\frac{10}{3}

Therefore the values of x and y to the given equations are x=-1 and y=\frac{10}{3}

The solution is (-1,\frac{10}{3})

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Answer:

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Step-by-step explanation:

3 0
2 years ago
2(x+11) = -26 show all work pls
Degger [83]

Answer:

x = -24

Step-by-step explanation:

First, distribute 2 to all terms within the parenthesis:

2(x + 11) =

2 * x = 2x

2 * 11 = 22

2x + 22 = -26

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

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~

First, subtract 22 from both sides of the equation:

2x + 22 (-22) = -26 (-22)

2x = -26 - 22

2x = -48

Next, divide 2 from both sides of the equation:

(2x)/2 = (-48)/2

x = -48/2

x = -24

x = -24 is your answer.

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4 0
2 years ago
Xyz are in 3:3:6.what are the measures of the angles
Anni [7]
Answer:

Set up an equation equal to <span>180o</span>

Explanation:

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<span>12x=180</span>

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So, the measure of the angles are:

<span>3x=3×15=45</span>
<span>3x=3×15=45</span>
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6 0
3 years ago
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Answer: you have to substitute them into the equation

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this equals 4 = 10 - 6 which is true

so that is how you test to see if the equation is right

remember the first number goes to "x" and the second one goes to y

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3 0
3 years ago
What are the possible values of x for the following functions?
stiks02 [169]
What can a denominator never be?

0

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