3+5(2a+4)=2(3a+9)+7

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Solution for 3+5(2a+4)=2(3a+9)+7 equation: 



3+5(2a+4)=2(3a+9)+7

We move all terms to the left:

3+5(2a+4)-(2(3a+9)+7)=0

We multiply parentheses

10a-(2(3a+9)+7)+20+3=0



We calculate terms in parentheses: -(2(3a+9)+7), so:

2(3a+9)+7

We multiply parentheses

6a+18+7

We add all the numbers together, and all the variables

6a+25

Back to the equation:

-(6a+25)



We add all the numbers together, and all the variables

10a-(6a+25)+23=0

We get rid of parentheses

10a-6a-25+23=0

We add all the numbers together, and all the variables

4a-2=0

We move all terms containing a to the left, all other terms to the right

4a=2

a=2/4

a=1/2

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