-3(5x+3)=81

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Solution for -3(5x+3)=81 equation:


-3(5x+3)=81

We simplify the equation to the form, which is simple to understand 
-3(5x+3)=81

Reorder the terms in parentheses
+(-15x-9)=81

Remove unnecessary parentheses
-15x-9=+81

We move all terms containing x to the left and all other terms to the right. 
-15x=+81+9

We simplify left and right side of the equation. 
-15x=+90

We divide both sides of the equation by -15 to get x. 
x=-6

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