6a+9-7=4a+a+12

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Solution for 6a+9-7=4a+a+12 equation: 



6a+9-7=4a+a+12

We move all terms to the left:

6a+9-7-(4a+a+12)=0

We add all the numbers together, and all the variables

6a-(5a+12)+9-7=0

We add all the numbers together, and all the variables

6a-(5a+12)+2=0

We get rid of parentheses

6a-5a-12+2=0

We add all the numbers together, and all the variables

a-10=0

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

a=10

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