Question

what number should replace each n ?(7×4)+(n×3)=7(4+3)​

Answer 1

(7×4)+(n×3)=7(4+3)

28+3n=7(7)

28+3n=49

3n=49-28

3n=21

n=21/3

n=7

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Answer 2

Step-by-step explanation:

( 7 × 4 ) + ( n × 3 ) = 7( 4 + 3 )

=> ( 28 ) + ( n × 3 ) = 7( 7 )

=> ( 28 ) + ( n × 3 ) = ( 49 )

=> ( n × 3 ) = 49 - 28

=> n = 21/3

=> n = 7