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goldenfox [79]
2 years ago
10

Simplify this algebraic expression. z- 4/4+8 A. Z-7 B. Z+9 C. 2-3 D. Z+7

Mathematics
2 answers:
Katarina [22]2 years ago
5 0

Answer:

Z-4/4+8

Z - 1 + 8

Z + (-1 + 8)

Z + 7

Oduvanchick [21]2 years ago
3 0

Answer:

(D) : Z+7

Step-by-step explanation:

−

1

+

8

}}

z−1+8

+

7

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1/4(-8x - 12) + -4 = 3/4(-8x - 12)
nekit [7.7K]

Here's our equation:

\frac{1}{4} (-8x-12)-4=\frac{3}{4} (-8x-12)

Factor out the left side

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Simplify

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Factor out the right side

-2x - 7 = -6x - 9

Add 7

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Add 6x to isolate the variable

4x = -2

Divide by 4

x = - 1/2

Here is how I simplified both sides initially. I'll only be showing the right side because this is a LOT of typing.

Begin with 3/4 (-8x - 12)

Use rule a*\frac{b}{c} = \frac{a * b}{c} to multiply

3(-8x-12)/4

Factor 3(-8x-12)

(-8x - 12) = (-4 * 2x - 4 * 3)

Simplify (-4 * 2x - 4 * 3)

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Now that we've factored  3/4 (-8x - 12), we're left with- 12 (2x + 3)/4.

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