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4 years ago

What property of equality is x+3.75=7

Mathematics

1 answer:

stira [4]4 years ago

5 0

3.25 you just subtract 3.75 from 7
Hope this helps!

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Simplify 10x - (5x-x)

Alex17521 [72]

Answer:

$\boxed{6x}$

Step-by-step explanation:

$10x - (5x-x)$

Distribute the Negative Sign:

$= 10x + -1 (5x - x)$

$= 10x + -1 ( 5x) + -1 (-x)$

$= 10x + -5x + x$

Combine Like Terms:

$= 10x + -5x + x$

$= (10x + -5x + x)$

$= 6x$

Hope this helped you!

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4 years ago

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3 years ago

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3 years ago

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Determine how many cards, in an ordinary deck of fifty-two, fit the description.

Irina18 [472]

12 face cards ; 13 spade cards ; 25 cards total
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5 0

4 years ago

Given that the quadratic equation 3x^2+bx-2 has x-intercept {-2, 4}. What is the "b" value.

Luba_88 [7]

The value of b is $b=3$

Explanation:

The given quadratic equation is $y=3x^{2} +bx-2$

And has x - intercept $(-2,4)$

To determine the value of b, let us substitute the coordinates $(-2,4)$ in the given quadratic equation $y=3x^{2} +bx-2$

Substituting the x - intercept in the equation $y=3x^{2} +bx-2$ , we have,

$4=3(-2)^{2} +b(-2)-2$

Simplifying, we have,

$4=3(4)-2b-2$

$4=12-2b-2$

Adding the constant terms, we get,

$4=10-2b$

Subtracting both sides by 10, we have,

$-6=-2b$

Dividing both sides by -2, we get,

$b=3$

Hence, the value of b is $b=3$

4 0

3 years ago