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AveGali [126]
3 years ago
7

Solve for d. -2 – 9d = -10d - 9

Mathematics
1 answer:
geniusboy [140]3 years ago
7 0

Answer:

d = -9

Step-by-step explanation:

-2 - 9d = -10d - 9 (combine liked terms)

+2                    +2  (added two to each side)

-9d = -10d - 9  (combined liked terms again for d this time)

+10d   +10d

1d = -9   (isolate x so divde one from each side)

d = -9

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Answer:

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3 years ago
Simplify the expression to standard form<br><br> -1/2(8x - 4) + (-5 + 3x)
Hitman42 [59]

Answer:

- x - 3

Step-by-step explanation:

1) regroup term.

-  \frac{1}{2} (8x - 4) + 3x - 5

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-  \frac{8x - 4}{2}  + 3x - 5

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-  \frac{4(2x - 1)}{2}  + 3x - 5

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5) Expand by distributing terms.

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6) Remove parentheses.

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6) Collect like terms.

( - 4x + 3x) + (2 - 5)

8) Simplify.

- x - 3

<em><u>Therefor</u></em><em><u>,</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>-x</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>3</u></em><em><u>.</u></em>

6 0
4 years ago
What does the expression 5(x+3) mean?
IRISSAK [1]
Number 1 would be the correct answer :)
7 0
3 years ago
An airplane has a wingspan of 25ft and a length of 20 ft. You are designing a model of the airplane with a wingspan of 15in. Wha
Lapatulllka [165]
18 inches (1 ft. 6 in.)
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3 years ago
Please help thx ______________
lubasha [3.4K]

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She drew a rectangle

Step-by-step explanation:

Rectangles have four right angles, and two pairs of (opposite) congruent sides.

7 0
4 years ago
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