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pashok25 [27]
3 years ago
11

-3х + 2y = 56 -5x- 2y = 24 X= Y=

Mathematics
1 answer:
Ket [755]3 years ago
5 0

Answer:

x = -10

y = 13

Step-by-step explanation:

-3x + 2y = 56

-5x - 2y = 24

__________ +

-8x____ = 80

x______= 80/-8

______x = -10

-3x + 2y = 56

-3(-10) + 2y = 56

30 + 2y = 56

2y = 56 - 30

2y = 26

y = 26/2

y = 13

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Hoochie [10]

Step-by-step explanation:

We use

a ^{2}  -  \times ^{2}  = (a -  \times )(a +  \times )

Now we have

\frac{ { \times }^{2} }{9}  - 64 = ( \frac{ \times }{3} ) ^{2}  -  {8}^{2}  \\  = ( \frac{ \times }{3}  - 8)( \frac{ \times }{3}  + 8)

Hope that useful for you

5 0
3 years ago
What is the value of x in the equation 6 (x + 11) = -300
Orlov [11]

Answer:

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Step-by-step explanation:

3 0
2 years ago
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(x+1)^2+(x-1)^2-2x(x+2)=0
antoniya [11.8K]

Answer:

x = 1/2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

  • (x+1)^2+(x-1)^2-2x(x+2)=0
  • x^2 + 2x + 1 + x^2 - 2x + 1 -2x^2 -4x = 0
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Step 2: Subtract 2 from both sides.

  • -4x + 2 - 2 = 0 - 2
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Step 3: Divide both sides by -4.

  • \frac{-4x}{-4} = \frac{-2}{-4}
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8 0
2 years ago
Suppose she cut the cake into 8 equal pieces and 6 people are all the pieces .Explain how they could have divided the pieces so
lapo4ka [179]
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How much Samantha made if 75% of her goal is raised.
hichkok12 [17]
$ 45 
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3 years ago
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