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USPshnik [31]
3 years ago
14

Simplify the expression by combining Like Terms: 7d + 12– 4d – 3

Mathematics
2 answers:
tangare [24]3 years ago
8 0
7d + 12 - 4d - 3
3d +9
(- signs attach to the number that comes after them, making that number a negative)
you combine 7d and -4d to give you 3d
you combine 12 and -3 to give you 9
giving you the answer of 3d+9
KATRIN_1 [288]3 years ago
4 0
3d+9
If you are solving for d then d=-3.
Hope this is helpful! :D
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lutik1710 [3]

Factor out the common term 6m

6m(m + 2) = 0

Solve for m

<em>When will m(m + 2) equal zero?</em>

When m = 0 or m + 2 = 0

Solve each of the equations above

<u>m = 0, -2</u>

3 0
3 years ago
5 Raymond was riding a zip-cable from the top of a viewing post. The cable is 75 yards long. The viewing post is 60 yards high a
Alenkasestr [34]
It is 45 yd from the base of the pole.

The pieces of the right triangle we are given are one of the legs (the height of the pole, 60 yd) and the hypotenuse (the length of the cable, 75 yd).  Using the Pythagorean theorem, we have:

60²+b²=75²
3600+b²=5625

Subtract 3600 from both sides:
3600+b²-3600=5625-3600
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Take the square root of both sides:
√(b²) = √2025
b = 45
7 0
4 years ago
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dimulka [17.4K]
X*2 = 2x

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3 years ago
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3 0
3 years ago
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ad-work [718]
The answer is D :)
-4(-1)+2
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8
Hope this helpeddd
6 0
3 years ago
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