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earnstyle [38]
3 years ago
10

How to solve d - 5 = 7 algebraically

Mathematics
2 answers:
Arte-miy333 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

Simplifying

d + -5 = 7

Reorder the terms:

-5 + d = 7

Solving

-5 + d = 7

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Add '5' to each side of the equation.

-5 + 5 + d = 7 + 5

Combine like terms: -5 + 5 = 0

0 + d = 7 + 5

d = 7 + 5

Combine like terms: 7 + 5 = 12

d = 12

Simplifying

d = 12

adelina 88 [10]3 years ago
6 0

Answer:

d = 12

Step-by-step explanation:

d - 5= 7

( d - 5 ) + 5 = 7 + 5

d - 5 + 5 = 12

d = 12

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Lady bird [3.3K]

Answer:

Q(-10) = 299

Step-by-step explanation:

Q(x) = 3x^{2} - 1Q(-10) = 3(-10)^{2} - 1

Q(-10) = 3(100) - 1  (-10 to the second power is 100 (negative times a negative equals a positive)

Q(-10) = 300 - 1  3 times 100 equal 300

Q(-10) = 299

5 0
3 years ago
Launa bought 20 pizzas for a party. How many pieces of pizza will she have if she divides them each into eighths? A 20 B 190 C16
mart [117]

Answer:

D. 160 pieces of pizza!

Step-by-step explanation:

If each pizza is cut into 8 pieces you would multiply 20 by eight and you get 160. Hope this helps! Have a great day!

5 0
3 years ago
Colleen can run 2 miles in 15 minutes. If she keeps us the same pace, how many minutes will it take to run 5 miles?
irinina [24]

15minutes / 2miles = 7.5 minutes to run a single mile.

7.5minutes * 5miles = 37.5minutes

37.5minutes to run 5 miles

7 0
3 years ago
What is (3a-b)+2a equal to?
zaharov [31]
You have to combine like terms, so 3b plus 2b equals 5b and you can't add b to 5a because they aren't defined, therefore th answer is 5a+b.


7 0
3 years ago
Samantha types 40 words per minute. How many words can Samantha type in 8 minutes?
Ne4ueva [31]

Answer:

C. 320 (correct)

Step-by-step explanation:

If Samantha can type 40 words per minute, to find the number of words Samantha can type in 8 minutes, multiply 40 by 8.

40×8=320

Therefore, Samantha can type 320 words in 8 minutes.

I hope this helps!

3 0
2 years ago
Read 2 more answers
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