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3 years ago

-12+5x=15-4x Please help me :( I need to know how to get the answer as well

Mathematics

2 answers:

tankabanditka [31]3 years ago

5 0

Answer:

We simplify the equation to the form, which is simple to understand

5x+15=4x-12

We move all terms containing x to the left and all other terms to the right.

+5x-4x=-12-15

We simplify left and right side of the equation.

+1x=-27

then divide both sides of the equation by 1 to get x.

x=-27

Oduvanchick [21]3 years ago

5 0

Answer: 3

Step-by-step explanation:

-12+5x=15-4x

5x+4x

-12+9x+15

15+12

9x/27

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3 years ago

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Taya2010 [7]

Answer:

BD = 12 :)

Step-by-step explanation:

Alright, we'll need the Pythagorean theorem for this!

So, the length of AC is 10. That means the lengths of AD and DC are both half of that, which is 5 :)

DC = 5

We already know that BC = 13, so we can plug in these values into the pythagorean theorem for the right triangle BDC:

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3 years ago

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alexandr402 [8]

Answer: Angle CDG, I think.

Step-by-step explanation:

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Since ADE is interior, then the other angle must be exterior.

6 0

3 years ago

Give an equation of a line that is parallel to −3x + 7y =4. Explain why your line is parallel to the given line and how you arri

koban [17]

Answer:

3x -7y = 0

Step-by-step explanation:

Parallel lines have the same slope.

Changing the constant in a linear equation like this only changes the y-intercept. It has no effect on the slope of the line. So, we can change the constant from 4 to 0 and we will have a line with the same slope, parallel to the original, but with a different y-intercept.

The "standard form" of the equation of a line has the leading coefficient positive. We can make that be the case by using the multiplication property of equality, multiplying both sides of the equation by -1.

Parallel line:

-3x +7y = 0

In standard form:

3x -7y = 0

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3 years ago