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const2013 [10]
2 years ago
10

Solve the system of equations with substitution or elimination method. please help 2x+y=4 and 6x+7y=12

Mathematics
2 answers:
GuDViN [60]2 years ago
8 0

Answer:

x=2-y/2

y=12/7-6x/7

Step-by-step explanation:

klemol [59]2 years ago
4 0
I solved using elimination, multiplying the first equation by -3. My work is shown in the attached image.
x=2
y=0

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The measure of one of the acute angles in a right triangle is 59°.
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Answer:

31*

Step-by-step explanation:

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2 years ago
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Nana76 [90]

Answer:

y = 0 and x = 6

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y = 4 and x = 0

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Step-by-step explanation:

2x+3y=12 is the equation of a straight line.

There are infinite number of solutions, but here you're probably looking for solutions where x and y are whole numbers. Trial and error will find you some, although if you examine the equation closely you see that if x is a multiple of 3 and y is a multiple of 2, then they produce terms that are the LCM (least common multiple) of 2 and 3, namely 6. That's the logic in the whole number solutions.

7 0
3 years ago
I’ll give you fat points
Bogdan [553]

Answer:

  • See below

Step-by-step explanation:

<u>Multiply and simplify:</u>

  • (x - 1)(x + 2)(x + 3) =
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  • (x² + x - 2)(x + 3) =
  • x³ + 3x² + x² + 3x - 2x - 6 =
  • x³ + 4x² + x - 6

<u>From the final polynomial we can see that:</u>

  • a = 1, b = 4, c = 1 and d = - 6

So all the coefficients are positive but the constant d is negative

5 0
2 years ago
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Apply the Distributive Property to: 8(-2c - 1)*<br> Please help me may god bless you
Harlamova29_29 [7]

Answer:

-16c - 8

Step-by-step explanation:

3 0
3 years ago
What is <br> (2n-9) -5 (-2.4n+4)
gtnhenbr [62]
2n-9-5-8n+4n
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3 years ago
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