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tiny-mole [99]
3 years ago
9

1) What can u do to get 2x alone on the left side?

Mathematics
1 answer:
CaHeK987 [17]3 years ago
5 0

Answer:

1)

82.5 - <u>8</u><u>2</u><u>.</u><u>5</u> + 2x = 338.5 - <u>8</u><u>2</u><u>.</u><u>5</u>

<u>2</u>x = <u>2</u><u>5</u><u>6</u>

2)

2x ÷ <u>2</u> = 256 ÷ <u>2</u>

x = <u>1</u><u>2</u><u>8</u>

Step-by-step explanation:

1)

In order to get rid 82.5, you have to substract the same value on both side to get a 0 value.

2)

In order to find the value of x, you have to divide the value that is sticked with x which is 2. As you divide 2 by 2, you will get 1 as a single value of x so you have to divide 2 to both side too.

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Answer:

  -2x +4

Step-by-step explanation:

We can write the polynomial p(x) in terms of the factors (x+2) and (x-3) as ...

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Where ax+b is the remainder from division by x^2 -x -6 = (x+2)(x-3). The values of 'a' and 'b' can be found from ...

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X+y+z=3<br> x-y+z=2<br> x+y-z=1
Dima020 [189]

Answer:

Step-by-step explanation:

I'm assuming you are solving this system for x, y, and z.  Do it this way:

Combine the first 2 equations and the second 2 equations and eliminate the y's.  The first 2 equations:

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x - y + z = 2

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2x + 2z = 5

The second 2 equations:

x - y + z = 2

x + y - z = 1

which solves to

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Now sub that x value into the bold equation above to get:

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