7+2(1+9a)=28

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Solution for 7+2(1+9a)=28 equation: 



7+2(1+9a)=28

We move all terms to the left:

7+2(1+9a)-(28)=0

We add all the numbers together, and all the variables

2(9a+1)+7-28=0

We add all the numbers together, and all the variables

2(9a+1)-21=0

We multiply parentheses

18a+2-21=0

We add all the numbers together, and all the variables

18a-19=0

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

18a=19

a=19/18

a=1+1/18

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