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(x-1)/2-x/2=3
We simplify the equation to the form, which is simple to understand
(x-1)/2-x/2=3
Simplifying:
(x-1)/2-0.5x=3
Reorder the terms in parentheses
( + 0.5x-0.5)-0.5x=3
Remove unnecessary parentheses
+ 0.5x-0.5-0.5x=3
We move all terms containing x to the left and all other terms to the right.
+ 0.5x-0.5x=+3 + 0.5
We simplify left and right side of the equation.
0x=+3.5
0=3.5
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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