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iVinArrow [24]
3 years ago
15

Help pls 50 points rewarded

Mathematics
2 answers:
dangina [55]3 years ago
5 0

-4x+11y=15

x=2y

-4*2y+11y=15

x=2y

-8y+11y=15

x=2y

3y=15 //3

x=2y

y=5

x=2*5

y=5

x=10

x=10

y=5

Tema [17]3 years ago
5 0

Answer:

x = 10

y = 5

Step-by-step explanation:

-4x + 11y = 15 and x = 2y

-4 × (2y) + 11y = 15

-8y + 11y = 15

3y = 15

y = 5 and since x = 2y the value of x would be 10

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B(16,4)

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C(16,-12)

 

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3 years ago
Solve the equation<br> 3x-2<br> 4<br> -<br> 2x - 5- 1 + x<br> 3 6
Nataly_w [17]

Answer:

  • \boxed{\sf x=12}

Step-by-step explanation:

\sf \cfrac{3x-2}{4}-\cfrac{2x-5}{3}=\cfrac{1+x}{6}

First, let's find the LCM of 4, 3, and 6.

<u>How to find the LCM:</u>

→ List multiples of each number.

→ Find the smallest number on each list.

4: 4, 8, 12, 16, 20, 24..

3: 3, 6, 9, 12, 15, 18, 21, 24, 27....

6: 6, 12, 18, 24, 30, 36, 42...

<u>LCM: 12</u>

<u>_________</u>

Now, we'll Multiply by LCM:

\sf \cfrac{3x-2}{4}\times \:12-\cfrac{2x-5}{3}\times \:12=\cfrac{1+x}{6}\times \:12

Simplify:

\sf 3\left(3x-2\right)-4\left(2x-5\right)=2\left(x+1\right)

Now, expand, Apply the Distributive property:

\bold{ 3\left(3x-2\right)-4\left(2x-5\right)}

\sf  9x-6-8x+20

Combine like terms:

\sf x+14

________

\bold{ 2\left(x+1\right)}

\sf 2x+2

\sf x+14=2x+2

Subtract 14 from both sides:

\sf x+14-14=2x+2-14

Simplify:

\sf x=2x-12

Subtract 2x from both sides:

\sf x-2x=2x-12-2x

Simplify:

\sf -x=-12

Divide both sides by -1:

\sf \cfrac{-x}{-1}=\cfrac{-12}{-1}

\sf x=12

<h3><u>____________________________</u></h3>
7 0
2 years ago
7g + 4g + 3g − 13g + g = 10 please help!!
Leona [35]
Combine like terms.


7g + 4g + 3g + g = 15g

15g - 13g = 2g


2g = 10


Divide by 2 on both sides.


g = 5
5 0
3 years ago
Read 2 more answers
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