644=-4+9(-8-10x)

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Solution for 644=-4+9(-8-10x) equation: 



644=-4+9(-8-10x)

We move all terms to the left:

644-(-4+9(-8-10x))=0

We add all the numbers together, and all the variables

-(-4+9(-10x-8))+644=0



We calculate terms in parentheses: -(-4+9(-10x-8)), so:

-4+9(-10x-8)

determiningTheFunctionDomain
9(-10x-8)-4

We multiply parentheses

-90x-72-4

We add all the numbers together, and all the variables

-90x-76

Back to the equation:

-(-90x-76)



We get rid of parentheses

90x+76+644=0

We add all the numbers together, and all the variables

90x+720=0

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

90x=-720

x=-720/90

x=-8

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