2+9+9=(8-4.2)

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Solution for 2+9+9=(8-4.2) equation: 


Simplifying
2 + 9 + 9 = (8 + -4.2)

Combine like terms: 2 + 9 = 11
11 + 9 = (8 + -4.2)

Combine like terms: 11 + 9 = 20
20 = (8 + -4.2)

Combine like terms: 8 + -4.2 = 3.8
20 = (3.8)
20 = 3.8

Solving
20 = 3.8

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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