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5/4*7+5/4*7+3(0)=21
We simplify the equation to the form, which is simple to understand
5/4*7+5/4*7+3(0)=21
Simplifying:
5/28+5/4*7+3*(0)=21
Simplifying:
5/28+5/28+3*(0)=21
Simplifying:
+ 0.178571428571+5/28+3*(0)=21
Simplifying:
+ 0.178571428571 + 0.178571428571+3*(0)=21
Reorder the terms in parentheses
+ 0.178571428571 + 0.178571428571+()=21
Remove unnecessary parentheses
+ 0.178571428571 + 0.1785714285710=+21
We move all terms containing to the left and all other terms to the right.
0=+21-0.178571428571-0.178571428571-0
We simplify left and right side of the equation.
0=+20.6428571429
0=20.6428571429
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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