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myrzilka [38]
3 years ago
6

Which ordered pair is a solution of the equation? − 4 x + 7 = 2 y − 3 −4x+7=2y−3

Mathematics
1 answer:
Maru [420]3 years ago
6 0

Answer:

The equation is

−4x+7=2y−3

Which can be rewritten as

2y−3  = -4x +7

2y = -4x + 10

y = -2x + 5

The equation represents the line shown in the image below.

Any point that belongs to the line is an ordered pair that represents a solution

To find any ordered pair that satisfies the equation, we place an arbitrary value for x and find the corresponding y value with the equation.

For example

x = 0 ,

y = -2(0) + 5  = 5

(0,5) is an ordered pair

x = 1 ,

y = -2(1) + 5  = 3

(1,3) is an ordered pair

x = 2 ,

y = -2(2) + 5  = 1

(2,1) is an ordered pair

And so on

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so

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8 0
3 years ago
What is the answer to 36÷9 using a number line?
Katarina [22]

To divide 36/9 using the number line you have to jump from zero with length of 9 until reach 36, and the result will be the number of jumps.

I do the jumps by steps, but you can draw in the number line:

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,

1. Second jump from 9 to 9+9=18.

,

2. Third jump from 18 to 18+9=27.

,

3. Fourth jump from 27 to 27+9=36.

,

4. Great!! We already reach 36.

So, we need four jumps of 9 to reach 36 from 0.

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4 0
1 year ago
5x + 20 = -5x What does "x" equal?
True [87]
<span>5x + 20 = -5x
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7 0
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