Question

Which of the following is equivalent to
3a + 4b – (–6a – 3b) ?
A. 16ab
B. –3a + b
C. –3a + 7b
D. 9a + b
E. 9a + 7b

Answer 1

hi friend,


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→Here is your required answer →(E)


=3a + 4b – (–6a – 3b)

=3a+4b+6a+3b

=9a+7b

so the correct option is →(E)


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I hope this will help u ;)

Answer 2

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$\huge \mathbb\fcolorbox{black}{lavenderblush}{Answer : ♡}$

Concept :

• When minus sign (-) is multiplied within a expression inside the braket, the sign before each term changes.
• That is : - changes to + and + changes to -

Solution :

3a + 4b - ( - 6a - 3b )

= 3a + 4b + 6a + 3b

As add like terms :

= ( 3a + 6a ) + ( 4b + 3b )

= 9a + 7b

Correct Option : E. 9a + 7b

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Hope my Answer is correct and useful !