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yKpoI14uk [10]
3 years ago
14

3x+2y=-9 and 5x-3y=4 using elimination I NEED A ANSWER NOW

Mathematics
2 answers:
jasenka [17]3 years ago
8 0

Answer:

X = -1 Y = -6

Step-by-step explanation:

3x + 2y = - 9

5x - 3y = 4

9x + 6y = - 27

10x - 6y = 8

9x = -27

10x = 8

19x = -19

X = -1

3x + 2y = - 9

2y = - 9 - 3x

Y = -4.5 - 1.5x

Y = -4.5 - 1.5 (-1)

Y = -4.5 - 1.5

Y = -6

melamori03 [73]3 years ago
3 0

Answer:

Point Form: ( − 1 , − 3 )

Equation Form:

x = − 1 , y = − 3

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

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Select the correct answer.
wariber [46]

Answer:

<u>~Senpi boi here~</u>

Step-by-step explanation:

Multiply all terms by x and cancel:

x+2x+1=1x

3x+1=x(Simplify both sides of the equation)

3x+1−x=x−x(Subtract x from both sides)

2x+1=0

2x+1−1=0−1(Subtract 1 from both sides)

2x=−1

2x

2

=

−1

2

(Divide both sides by 2)

x=

−1

2

Check answers. (Plug them in to make sure they work.)

x=

−1

2

(Works in original equation)

<u>Answer:</u>

<u>x= −1/2</u>

<u>(</u>Hope this helps!)

5 0
2 years ago
If one ml. Equals one gram how much does a liter of water weigh
stich3 [128]
It will equal 1 Kg because 1ml = 1 gram
6 0
4 years ago
Read 2 more answers
How do you solve U/6=9
notsponge [240]
/ means divide, so U( an unknown value ) / 6 = 9. to get the answer, simply multiply  6 x 9 
6 0
4 years ago
Solve for x <br>3(x - 2) = 6x - 12<br>​
nalin [4]

Answer:

The answer is 2

Step-by-step explanation:

Here's how I got it:

3(x - 2) = 6x - 12

Multiply 3 times x and 3 times 2, this is what you would get

3x - 6 = 6x - 12

Then, subtract the lowest x with the bigger X, this way you would have x on one side:

3x - 6 = 6x - 12

-3x        -3x

This is what you should have after this:

-6 = 3x - 12

Now, to get the variable (letter that represents a number) by itself, you have to add 12 to both sides like this:

-6 = 3x - 12

+12        +12

You would get this:

6 = 3x

Finally, you have to get x by itself, so you have to divide 3 on both sides like this

6/3 = 3/3 x

That's why, your answer is 2

5 0
3 years ago
Find the value of the variable y in the equation –5.7 + y = 8.2.
emmasim [6.3K]

Answer:

y = 13.9

Step-by-step explanation:

It is given that  

–5.7 + y = 8.2.    -----(1)

Equation (1) is a linear equation in one variable.  

LHS consists of a constant and a variable term

RHS consists of only constant term

<u>Find the value of y</u>

Solving the equation

-5.7 + y = 8.2

moving -5.7 to the RHS

y = 8.2 + 5.7

y = 13.9

Therefore the value of y = 13.9

-5.7 + y = 8.2

5 0
3 years ago
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