142=-2(8b-7)

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Solution for 142=-2(8b-7) equation: 



142=-2(8b-7)

We move all terms to the left:

142-(-2(8b-7))=0



We calculate terms in parentheses: -(-2(8b-7)), so:

-2(8b-7)

We multiply parentheses

-16b+14

Back to the equation:

-(-16b+14)



We get rid of parentheses

16b-14+142=0

We add all the numbers together, and all the variables

16b+128=0

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

16b=-128

b=-128/16

b=-8

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