(-19a)-4a-(-7a)-4a+a=19

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Solution for (-19a)-4a-(-7a)-4a+a=19 equation: 



(-19a)-4a-(-7a)-4a+a=19

We move all terms to the left:

(-19a)-4a-(-7a)-4a+a-(19)=0

We add all the numbers together, and all the variables

-7a+(-19a)-(-7a)-19=0

We get rid of parentheses

-7a-19a+7a-19=0

We add all the numbers together, and all the variables

-19a-19=0

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

-19a=19

a=19/-19

a=-1

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