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Ksenya-84 [330]
3 years ago
15

Use diagram to answer 3(x+6)=30

Mathematics
2 answers:
Alja [10]3 years ago
6 0
The answer is 4
Plug in method

3 (4)+6 =30 plug in value for x
3(4)+3(6) =30 distributive prop.
12+18=30 equals 30
Katyanochek1 [597]3 years ago
5 0

Answer:

Step-by-step explanation:

3x + 18 = 30

3x + 18 -18 = 30 - 18

3x = 12

x = 4

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3 years ago
The distance between -6 and 15 on a number line is 9?
abruzzese [7]

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3 0
3 years ago
John wrote that 5+5=10.
Anvisha [2.4K]

By the additive property of equality, the equations John wrote are equivalent.

<h3>Additive property of equality: Determining equivalent equations</h3>

From the question, we are to determine if the equations John wrote are equivalent.

From the given information,

John wrote that

5 + 5 = 10

Then,

He added n to both sides of the equation to get

5 + 5 + n = 10 + n

From the Additive property of equality, we have that

"<em>If we add or subtract the same number to both sides of an equation, the sides remain equal</em>."

Since, John added the same number, n, to both sides of the equation, the equations John wrote are equivalent.

Learn more on Determining equivalent equations here: brainly.com/question/21765596

#SPJ1

8 0
1 year ago
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