21(2-.2)+12(.2)=

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Solution for 21(2-.2)+12(.2)= equation: 


Simplifying
21(2 + -0.2) + 12(0.2) = 0

Combine like terms: 2 + -0.2 = 1.8
21(1.8) + 12(0.2) = 0

Multiply 21 * 1.8
37.8 + 12(0.2) = 0

Multiply 12 * 0.2
37.8 + 2.4 = 0

Combine like terms: 37.8 + 2.4 = 40.2
40.2 = 0

Solving
40.2 = 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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