Question

3(a+b)=21ans this que tion
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Answer 1

Answer:

$( a+b ) = 7$

Step-by-step explanation:

$3( a+b ) = 21 \\ ( a+b ) = \frac{21}{3} \\ ( a+b ) = 7$

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Answer 2

Step-by-step explanation:

3(a+b)=21

a+b=21/3

a+b=7