Question

Simplify 2a-{3b+6c2c-(4a-2b) }and find its value for a=2,b=3 and c=1​

Answer 1

Answer:

The answer will be - 15 .

Step-by-step explanation:

Given :

2a - [ 3b + 6c 2c - ( 4a- 2 b)

And a = 2 , b = 3 and c = 1

Calculations:

Putting a = 2 , b = 3 and c = 1 in 2a - [ 3b + 6c 2c - ( 4a- 2 b) and then solving, we have :

2a - [ 3b + 6c 2c - ( 4a- 2 b)

= 2 (2) - [ 3(3) + 6(1) 2(1) -(4(2) - 2(3)]

= 4 - [ 9 + 6×2 - ( 8 - 6 ) ]

= 4 - [ 9 + 12 - 2 ]

= 4 - [ 9 + 10 ]

= 4 - [ 19 ]

= - 15

Hence, the correct answer is - 15 .

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Answer 2

Answer:

-15 is the required value for the given question.

Step-by-step explanation:

Explanation:

Given that, 2a- {3b + 6c2c - (4a - 2b) }

And also given that, a = 2, b = 3 and c = 1.

So, according to the question we need to find out its value for a = 2, b = 3, and c = 1.

• As we know that according to the BODMAS rule, Multi-operator mathematical equations must be resolved in the BODMAS order from left to right.

• The BODMAS rule states that if an expression involves brackets ((),{}, []), we must first solve or simplify the bracket before moving on to the left-to-right operations of the division, multiplication, addition, and subtraction.

Step 1:

We have, value of a = 2 , b = 3 and c = 1

On putting the given values in  2a-{3b+6c2c-(4a-2b) } we get,

⇒ 2(2) - {3(3)+6(1)2(1)- (4(2)-2(3))}

First, we solve the part of the bracket.

⇒4 - {9 + 12 - (8 - 6)}

⇒4 - {9 + 12 -(2)}

⇒4 - {9 +10}

⇒4 - {19}

⇒-15

Final answer:

Hence, -15 is the required value for the given question.

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