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matrenka [14]
2 years ago
8

(4.x-7)(x - 1) = 0 Help please

Mathematics
1 answer:
hoa [83]2 years ago
8 0

Step-by-step explanation:

= 4x( x -1) -7( x-1)

= 4x^2 -4x -7x +7

= 4x^2 -11x +7

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The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 Substitute the value of y in the first equation: Combin
svp [43]

Answer:

X = 1

Step-by-step explanation:

To solve the system of equation by susbtitution:

3x + y = 9

y = –4x + 10

We can follow the steps thus:

<em />

<em>Substitute the value of y in the first equation:</em>

As in the second equation y = -4x + 10 we can substitute in the first equation as follows:

3x + y = 9

3x + -4x + 10 = 9

<em>Combine like terms: </em>

3x + -4x + 10 = 9

Like therms are the therms with X (3x - 4x = -1x):

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<em>Apply the subtraction property of equality: </em>

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As 10 is suming, it passes to subtracting the 9:

-1x  = 9 - 10

-1x = -1

<em>Apply the division property of equality:</em>

-1x = -1

Dividing in -1:

x = -1 / -1

<h3>X = 1</h3>
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3 years ago
Solve the equation for -x+2=4
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