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Inessa [10]
3 years ago
5

2a +5 - 3a -12 please

Mathematics
2 answers:
chubhunter [2.5K]3 years ago
7 0

Answer:

-7-a

Step-by-step explanation:

2a-3a +5-12

-a - 7

or -7-a

Nastasia [14]3 years ago
3 0

Answer:

-a - 7

Step-by-step explanation:

Add like terms to simplify the expression:

2a + 5 - 3a - 12

Add together 2a and -3a:

2a - 3a = -a

Add together 5 and -12:

5 - 12 = -7

Add these together:

-a - 7

So, the simplified expression is -a - 7

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2 years ago
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denpristay [2]

Answer: have a good day :)

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6 0
3 years ago
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Kaylis [27]

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Step-by-step explanation:

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5 0
2 years ago
Twice the sum of consecutive numbers n and n + 1 is 510. What is the smaller number?
guajiro [1.7K]

Answer:

The smaller number is 127

Step-by-step explanation:

Lets write the given problem in equation form

sum of consecutive numbers n and n + 1 = n + n + 1 = 2n + 1

now we find twice of the sum of consecutive numbers n and n + 1

2*(2n + 1) = 4n + 2

given that

twice the sum of consecutive numbers n and n + 1 is 510

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4n + 2 = 510

=> 4n = 510 -2 = 508

=> n = 508/4 = 127

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3 years ago
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Bezzdna [24]

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Step-by-step explanation:

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3 years ago
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