9/10-(2/5)=

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Solution for 9/10-(2/5)= equation:


9/10-(2/5)=0

We simplify the equation to the form, which is simple to understand 
9/10-(2/5)=0

Simplifying:
 + 0.9-(2/5)=0

Simplifying:
 + 0.9-( + 0.4)=0

Remove unnecessary parentheses
 + 0.9-0.4=0

We move all terms containing  to the left and all other terms to the right. 
0=0-0.9 + 0.4

We simplify left and right side of the equation. 
0=-0.5

0=-0.5

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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