2a+3-(4a-9)=4

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



2a+3-(4a-9)=4

We move all terms to the left:

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

We add all the numbers together, and all the variables

2a-(4a-9)-1=0

We get rid of parentheses

2a-4a+9-1=0

We add all the numbers together, and all the variables

-2a+8=0

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

-2a=-8

a=-8/-2

a=+4

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