5a+4a-4=5a+4

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Solution for 5a+4a-4=5a+4 equation: 



5a+4a-4=5a+4

We move all terms to the left:

5a+4a-4-(5a+4)=0

We add all the numbers together, and all the variables

9a-(5a+4)-4=0

We get rid of parentheses

9a-5a-4-4=0

We add all the numbers together, and all the variables

4a-8=0

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

4a=8

a=8/4

a=2

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