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3 years ago

Solve the system of equations. 6x – 3y = 3 –2x + 6y = 14

Mathematics

2 answers:

Oxana [17]3 years ago

6 0

Answer:

x=2; y=3

Step-by-step explanation:

You first add 3y to both sides. Divide both sides by 6. Then subsitute to get your answer.

lapo4ka [179]3 years ago

4 0

Answer:

x=2, y=3

Step-by-step explanation:

6x-3y=3

-2x+6y=14

From the first equation, let's figure out x.

6x-3y=3

+3y +3y

6x=3+3y

/6 /6

x=(3+3y)/6

Now, substitute

-2(0.5+0.5y)+6y=14

-1-y+6y=14

-1+5y=14

+1 +1

5y=15, y=3

So now that we know the value of y, we can substitute with our x equation to get the value of x.

x=0.5+0.5y

0.5y=0.5*3=1.5

1.5+0.5=2

So, x=2, y=3

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Step-by-step explanation:

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3 years ago

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leva [86]

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3 years ago

Q(a+1) - 2q(a) if q(x) = x²+3x+4

siniylev [52]

$q(x) = {x}^{2} + 3x + 4$

_________________________________

Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

$q(a) = {a}^{2} + 3a + 4$

Multiply sides by -2 :

$- 2q(a) = - 2( {a}^{2} + 3a + 4)$

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Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

$q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\$

$q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\$

$q(a + 1) = {a}^{2} + 5a + 8$

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Step (3)

$q(a + 1) - 2q(a) =$

${a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\$

$- {a}^{2} - a = - a(a + 1)$

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

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4 years ago

Olympic gold medal winner Michael Phelps compete in a pool with required dimensions 2.5 M by 50 m by 2 m what is the volume of t

Murrr4er [49]

Answer:

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Step-by-step explanation:

volume of the Olympic grid pool

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3 years ago

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Dafna11 [192]

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