If a - b -6then- calculate a x 2-9-3-6- b - 2- using suitable properties of integers-A- 12B- 10C- N

The correct option is A 12a x 2 + 9 3 + ( 6) + b x 2 Using associative nbsp;property a x 2 + b x 2 + 9 3 + ( 6) Using distributivite property a x b + a x ...

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Standard VII

Mathematics

Properties of Integers under Multiplication

If a + b =6th...

Question

If a + b = 6
then, calculate a x 2 + 9 - 3 + (-6) + b x 2 = using suitable properties of integers.

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Solution

The correct option is A 12
a x 2 + 9 - 3 + (-6) + b x 2
Using associative property
a x 2 + b x 2 + 9 - 3 + (-6)
Using distributivite property
a x b + a x c = a x (b + c)
Now,
Using distributive property:
a x 2 + b x 2 + 9 - 3 + (-6)
= 2 x ( a + b ) + 6 - 6
= 2 x 6 [Given : a + b = 6]
= 12

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If a + b = 6 then, calculate a x 2 + 9 - 3 + (-6) + b x 2 = using suitable properties of integers.

The correct option is A 12a x 2 + 9 - 3 + (-6) + b x 2 Using associative property a x 2 + b x 2 + 9 - 3 + (-6) Using distributivite property a x b + a x c = a x (b + c) Now, Using distributive property: a x 2 + b x 2 + 9 - 3 + (-6) = 2 x ( a + b ) + 6 - 6 = 2 x 6 [Given : a + b = 6] = 12

If a + b = 6
then, calculate a x 2 + 9 - 3 + (-6) + b x 2 = using suitable properties of integers.

The correct option is A 12
a x 2 + 9 - 3 + (-6) + b x 2
Using associative property
a x 2 + b x 2 + 9 - 3 + (-6)
Using distributivite property
a x b + a x c = a x (b + c)
Now,
Using distributive property:
a x 2 + b x 2 + 9 - 3 + (-6)
= 2 x ( a + b ) + 6 - 6
= 2 x 6 [Given : a + b = 6]
= 12