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(-5/7)-(-2/7)=0
We simplify the equation to the form, which is simple to understand
(-5/7)-(-2/7)=0
Remove unnecessary parentheses
-0.71428571428571-(-0.28571428571429)=0
Remove unnecessary parentheses
-0.71428571428571 + 0.28571428571429=0
We move all terms containing to the left and all other terms to the right.
0=0 + 0.71428571428571-0.28571428571429
We simplify left and right side of the equation.
0=0.42857142857142
0=0.42857142857142
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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