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2 years ago

How do you work8x= -4x -3x

Mathematics

2 answers:

alukav5142 [94]2 years ago

8 0

First combine like terms on each side so
8x = -7x
then move -7x
so x=0

Dennis_Churaev [7]2 years ago

6 0

X=0. Combine -4x-3x which is -7x. move -7x to the other side and set the equation equal to 0. Combine like terms to get 15x then divide both sides by 15 to get x by itself

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The midpoint of \overline{\text{AB}}

Schach [20]

Answer:

<em>The coordinates of b are: B=(-7,-8)</em>

Step-by-step explanation:

We are given the coordinates of the midpoint of $\overline{\text{AB}}$ as M=(-5,-2).

We are also given the coordinates of A=(-3,4). The question requires us to calculate the coordinates of the other endpoint B.

Let (xb,yb) the coordinates of B. The coordinates of the midpoint can be calculated as follows:

$\displaystyle x_m=\frac{x_a+x_b}{2}$

$\displaystyle y_m=\frac{y_a+y_b}{2}$

We know xa=-3 and xm=-5. Solve the first equation for xb:

$2x_m=x_a+x_b\Rightarrow x_b=2x_m-x_a$

Substituting:

$x_b=2\cdot (-5)-(-3)=-10+3$

$x_b=-7$

We can solve the second equation for xb and get:

$y_b=2y_m-y_a$

Since ya=4 and ym=-2, then:

$y_b=2\cdot (-2)-(4)=-4-4$

$y_b=-8$

Thus, the coordinates of b are: B=(-7,-8)

4 0

3 years ago

Lakshmi donates 20% of her income to charity. What fraction of her income does Lakshmi donate to charity?

777dan777 [17]

1/5

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5 0

3 years ago

Pls, help with this!!!

Solnce55 [7]

Answer:

The first one is 8/12.

Step-by-step explanation:Add numerator and keep denominator same.

7 0

3 years ago

Read 2 more answers

What dose 5h-2+9h equal explain☺

DerKrebs [107]

Start out by combining LIKE TERMS
5h-2+9h
in this case 9h and 5h are like terms so you would add both of those together.
9h+5h=14h
-2 has no like terms so we can't do anything with it our final answer would be:
14h-2

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3 years ago

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Nastasia [14]

I believe that is Algeria .

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3 years ago

Read 2 more answers

How do you work8x= -4x -3x​

How do you work8x= -4x -3x