6+3(4+9m)-15m=3(4m-1)+21

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Solution for 6+3(4+9m)-15m=3(4m-1)+21 equation: 



6+3(4+9m)-15m=3(4m-1)+21

We move all terms to the left:

6+3(4+9m)-15m-(3(4m-1)+21)=0

We add all the numbers together, and all the variables

3(9m+4)-15m-(3(4m-1)+21)+6=0

We add all the numbers together, and all the variables

-15m+3(9m+4)-(3(4m-1)+21)+6=0

We multiply parentheses

-15m+27m-(3(4m-1)+21)+12+6=0



We calculate terms in parentheses: -(3(4m-1)+21), so:

3(4m-1)+21

We multiply parentheses

12m-3+21

We add all the numbers together, and all the variables

12m+18

Back to the equation:

-(12m+18)



We add all the numbers together, and all the variables

12m-(12m+18)+18=0

We get rid of parentheses

12m-12m-18+18=0

We add all the numbers together, and all the variables

=0

m=0/1

m=0

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