-.9(-.9)+6.4=

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Solution for -.9(-.9)+6.4= equation: 


Simplifying
-0.9(-0.9) + 6.4 = 0

Multiply -0.9 * -0.9
0.81 + 6.4 = 0

Combine like terms: 0.81 + 6.4 = 7.21
7.21 = 0

Solving
7.21 = 0

Couldn't find a variable to solve for.

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

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