2a+4=4a-5

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Solution for 2a+4=4a-5 equation: 



2a+4=4a-5

We move all terms to the left:

2a+4-(4a-5)=0

We get rid of parentheses

2a-4a+5+4=0

We add all the numbers together, and all the variables

-2a+9=0

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

-2a=-9

a=-9/-2

a=4+1/2

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