78=-2(2x-5)

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Solution for 78=-2(2x-5) equation: 



78=-2(2x-5)

We move all terms to the left:

78-(-2(2x-5))=0



We calculate terms in parentheses: -(-2(2x-5)), so:

-2(2x-5)

We multiply parentheses

-4x+10

Back to the equation:

-(-4x+10)



We get rid of parentheses

4x-10+78=0

We add all the numbers together, and all the variables

4x+68=0

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

4x=-68

x=-68/4

x=-17

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