19=7a-4*2

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Solution for 19=7a-4*2 equation: 



19=7a-4*2

We move all terms to the left:

19-(7a-4*2)=0

We add all the numbers together, and all the variables

-(7a-8)+19=0

We get rid of parentheses

-7a+8+19=0

We add all the numbers together, and all the variables

-7a+27=0

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

-7a=-27

a=-27/-7

a=3+6/7

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