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2x-5(x-4)=9
We simplify the equation to the form, which is simple to understand
2x-5(x-4)=9
Reorder the terms in parentheses
2x+(-5x+20)=9
Remove unnecessary parentheses
+2x-5x+20=+9
We move all terms containing x to the left and all other terms to the right.
+2x-5x=+9-20
We simplify left and right side of the equation.
-3x=-11
We divide both sides of the equation by -3 to get x.
x=3.6666666666667
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