87=-3(1+5x)-3x

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Solution for 87=-3(1+5x)-3x equation: 



87=-3(1+5x)-3x

We move all terms to the left:

87-(-3(1+5x)-3x)=0

We add all the numbers together, and all the variables

-(-3(5x+1)-3x)+87=0



We calculate terms in parentheses: -(-3(5x+1)-3x), so:

-3(5x+1)-3x

We add all the numbers together, and all the variables

-3x-3(5x+1)

We multiply parentheses

-3x-15x-3

We add all the numbers together, and all the variables

-18x-3

Back to the equation:

-(-18x-3)



We get rid of parentheses

18x+3+87=0

We add all the numbers together, and all the variables

18x+90=0

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

18x=-90

x=-90/18

x=-5

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