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2.80-1=1/9(70)-1
We simplify the equation to the form, which is simple to understand
2.80-1=1/9(70)-1
Reorder the terms in parentheses
2.80-1=+(+7.7777777777778)-1
Remove unnecessary parentheses
+2.80-1=+7.7777777777778-1
We move all terms containing to the left and all other terms to the right.
0=+7.7777777777778-1-2.8+1
We simplify left and right side of the equation.
0=+4.9777777777778
0=4.9777777777778
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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