Question

The value of the expression 2 ( x - 7) if x = -1 is​

Answer 1

Solution :-

Answer :-

=> -16

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Expression :-

2 ( x - 7 )

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Given :-

X = -1

Concept :-

While solving these types of questions we should remember the rules of BODMAS [ Bracket Of Divisions Multiplication Addition and Subtraction ].

Step By Step Solution :-

Expression = 2 ( x - 7 )

As we know X = -1

So,

$= > 2(x - 7) \\ \\ = > 2( - 1 - 7) \\ \\ = > 2 \times ( - 8) \\ \\ = > - 16$

Therefore the answer = -16

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Extra Information :-

• While multiplying a negative number with a positive number the result will be negative.
• While multiplying a negative number with a negative number the result will be positive.
• While solving always remember the rules of BODMAS [ Bracket Of Divisions Multiplication Addition and Subtraction ]
• (-) × (-) = (+)
• (-) × (+) = (-)
• (+) × (-) = (+)
• (+) × (+) = (+)

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Answer 2

The Answer of the problem is given.