7a-9.9a=6.2

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Solution for 7a-9.9a=6.2 equation: 


Simplifying
7a + -9.9a = 6.2

Combine like terms: 7a + -9.9a = -2.9a
-2.9a = 6.2

Solving
-2.9a = 6.2

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Divide each side by '-2.9'.
a = -2.137931034

Simplifying
a = -2.137931034

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