7/10+(-2/5)=

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Solution for 7/10+(-2/5)= equation:


7/10+(-2/5)=0

We simplify the equation to the form, which is simple to understand 
7/10+(-2/5)=0

Simplifying:
 + 0.7+(-2/5)=0

Simplifying:
 + 0.7+(-0.4)=0

Remove unnecessary parentheses
 + 0.7-0.4=0

We move all terms containing  to the left and all other terms to the right. 
0=0-0.7 + 0.4

We simplify left and right side of the equation. 
0=-0.3

0=-0.3

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

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