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`2x+5-3(8+9x)=56`

We simplify the equation to the form, which is simple to understand

2x+5-3(8+9x)=56

Reorder the terms in parentheses

2x+5+(-24-27x)=56

Remove unnecessary parentheses

+2x+5-24-27x=+56

We move all terms containing x to the left and all other terms to the right.

+2x-27x=+56-5+24

We simplify left and right side of the equation.

-25x=+75

We divide both sides of the equation by -25 to get x.

x=-3

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