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2/3+a-5/9=-a+2a
We simplify the equation to the form, which is simple to understand
2/3+a-5/9=-a+2a
We move all terms containing a to the left and all other terms to the right.
+1a+1a-2a=-0.66666666666667 + 0.55555555555556
We simplify left and right side of the equation.
a=-0.11111111111111
0=-0.11111111111111
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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