-137=-4-7a

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Solution for -137=-4-7a equation: 



-137=-4-7a

We move all terms to the left:

-137-(-4-7a)=0

We add all the numbers together, and all the variables

-(-7a-4)-137=0

We get rid of parentheses

7a+4-137=0

We add all the numbers together, and all the variables

7a-133=0

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

7a=133

a=133/7

a=19

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