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Tcecarenko [31]
3 years ago
7

Grade 7 Math.

Mathematics
1 answer:
marshall27 [118]3 years ago
5 0
Distributive
Communative
Associative
☆is the order.
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How many solutions does 5(x+9)=5x+45 have
Scilla [17]

Answer:

Simplifying

5(x + 9) = 5x + 45

Reorder the terms:

5(9 + x) = 5x + 45

(9 * 5 + x * 5) = 5x + 45

(45 + 5x) = 5x + 45

Reorder the terms:

45 + 5x = 45 + 5x

Add '-45' to each side of the equation.

45 + -45 + 5x = 45 + -45 + 5x

Combine like terms: 45 + -45 = 0

0 + 5x = 45 + -45 + 5x

5x = 45 + -45 + 5x

Combine like terms: 45 + -45 = 0

5x = 0 + 5x

5x = 5x

Add '-5x' to each side of the equation.

5x + -5x = 5x + -5x

Combine like terms: 5x + -5x = 0

0 = 5x + -5x

Combine like terms: 5x + -5x = 0

0 = 0

Solving

0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions

Step-by-step explanation:

7 0
3 years ago
Order the numbers from least to greatest -3 , -8, |-6|, 2
Korvikt [17]

Answer: -8, -3, 2, |-6|

Step-by-step explanation:

-3 , -8, |-6|, 2

|-6|=6

6>2

-3>-8 since a negative number closer to 0 is the greater number.

Order: -8, -3, 2, 6 ==> -8, -3, 2, |-6|

3 0
2 years ago
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What is the difference between |-3|and -3?
Ber [7]

Answer:

c vbnnbvgh3456789okjhgc

Step-by-step explanation:

4 0
3 years ago
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Leela invests $500 at 4.5% interest according to the equation mc018-1.jpg, where Vl is the value of the account after t years. A
Karolina [17]
ΔThe Answer to your question is D).<span>109.2%</span>Δ
8 0
3 years ago
A color printer prints 21 pages in 9 minutes. How many pages does it print per minute? Round your answer to the nearest hundredt
hichkok12 [17]

Answer:

2.33 = x

Step-by-step explanation:

pages minutes

21 9

x 1

Cross multiply.

21×1 = 9×x

<u>21</u><u> </u> <u>9x</u>

9 9

9 cancels 9 leaving x. and 21 divided by 9 equals 2.33 pages. NB. both sides are divided by 9 because we want x by itself and what you do to one side, you have to do to the other.

8 0
3 years ago
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