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2 years ago

11

((6x-8)-2x)-((12x-7)-(4x-5))

1 answer:

KengaRu [80]2 years ago

6 0

Answer:

-12x + 4

Step-by-step explanation:

(6x - 8 - 2x) - (12x - 7) - (4x - 5)

The subtraction sign before the parenthesis is basically multiplying by -1, so the subtraction signs in the parenthesis have to change to addition. After that, you can remove the parenthesis.

6x - 8 - 2x - 12x + 7 - 4x + 5

Simplified = -12x + 4

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Bernard counted 8 posts along the side of the road. If the posts were 20meters apart how far is the first post from the last

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There will be seven spaces between the 1st and the 8th post.
The distance between posts is 20 meters
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3 years ago

How do i solve this?

Marizza181 [45]

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Step-by-step explanation:

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3 years ago

(x^3+x^2-9x-6)÷(x^2-9) using long division? How would I solve?

GarryVolchara [31]

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3 years ago

Graph and write solution:<br><br> 2x + 1 = y<br><br> -4x + 6y = -10

PIT_PIT [208]

The graph is shown in figure below

The Solution Set is (-2,-3)

Step-by-step explanation:

We need to graph the equations and writ the solution.

For graphing we need to find the values of x and y.

For that, we need to solve the given equations:

$2x + 1 = y\\-4x + 6y = -10$

Let:

$2x + 1 = y\,\,\,eq(1)\\-4x + 6y = -10\,\,\,eq(2)$

We can solve this by using Substitution Method.

Putting value of y of eq(1) into eq(2) and finding value of x:

$2x + 1 = y\,\,\,eq(1)\\-4x+6(2x+1)=-10\\-4x+12x+6=-10\\8x+6=-10\\8x=-10-6\\8x=-16\\x=-16/8\\x=-2$

So, value of x = -2

Now put value of x in eq(1) to find value of y:

$2x + 1 = y\\2(-2)+1=y\\-4+1=y\\y=-3$

So, value of y = -3

Plotting on graph: x=-2 and y = -3

The graph is shown in figure below

The Solution Set is (-2,-3)

Keywords: graph the equations

Learn more about Graphing Equations at:

#learnwithBrainly

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3 years ago

How many heartbeats are in 45 seconds

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Answer:

about 56! since there are around 75 per min

Step-by-step explanation:

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3 years ago