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3 years ago

Helpyffhvjvjnvhdfuguig

Mathematics

2 answers:

Luba_88 [7]3 years ago

6 0

I can’t read it so I can’t help u

love history [14]3 years ago

3 0

Answer:

x = 0, x = 4

Step-by-step explanation:

12x - 21 = 5x + 7(x - 3)

First, foil out the right side --> 5x² - 15x + 7x - 21, which simplifies down to 5x² - 8x - 21.

Move the 12x - 21 to the right side by subtracting --> 0 = 5x² - 20x.

Factor out a 5x --> 0 = 5x(x - 4)

If you want to solve for x, set 5x = 0 and x - 4 = 0.

For 5x = 0, divide both sides by 5 to isolate the x --> x = 0/5, which simplifies down to x = 0.

For x - 4 = 0, add 4 to both sides to isolate the x --> x = 0 + 4, which simplifies down to x = 4.

Plug the values back into the original equation to check if it works

12(0) -21 = 5(0) + 7((0) - 3) --> -21 = -21

12(4) - 21 = 5(4) + 7((4) -3) --> 27 = 27

Hope this helps!

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tino4ka555 [31]

Explanation:

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3. Mark the points where the arc crosses ED as G, and where it crosses EF as H. Mark the point where the arc crosses the line containing S as I.

4. Set the compass radius to the distance GH. Using I as the center draw an arc with that radius so that it crosses the one made in step 2. Call that intersection point J. (Again, we have shown a circle because of the limitations of the tool being used for our diagram.)

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3 years ago

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sergeinik [125]

Answer:

Step-by-step explanation:

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3 years ago

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Alenkasestr [34]

Answer:

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Step-by-step explanation:

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3 years ago

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suter [353]

Answer:

Step-by-step explanation:

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If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.

If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.

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Fynjy0 [20]

Answer:

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Step-by-step explanation:

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3 years ago

Helpyffhvjvjnvhdfuguig​

Helpyffhvjvjnvhdfuguig