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2(2)+1=-4
We simplify the equation to the form, which is simple to understand
2(2)+1=-4
Reorder the terms in parentheses
+(+4)+1=-4
Remove unnecessary parentheses
+4+1=-4
We move all terms containing to the left and all other terms to the right.
0=-4-4-1
We simplify left and right side of the equation.
0=-9
0=-9
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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