7a+4-2a=7a=+-2a+4

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Solution for 7a+4-2a=7a=+-2a+4 equation: 



7a+4-2a=7a=+-2a+4

We move all terms to the left:

7a+4-2a-(7a)=0

We add all the numbers together, and all the variables

-2a+4=0

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

-2a=-4

a=-4/-2

a=+2

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