8.9=a(20)

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Solution for 8.9=a(20) equation:


Simplifying
8.9 = a(20)

Reorder the terms for easier multiplication:
8.9 = 20a

Solving
8.9 = 20a

Solving for variable 'a'.

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

Add '-20a' to each side of the equation.
8.9 + -20a = 20a + -20a

Combine like terms: 20a + -20a = 0
8.9 + -20a = 0

Add '-8.9' to each side of the equation.
8.9 + -8.9 + -20a = 0 + -8.9

Combine like terms: 8.9 + -8.9 = 0.0
0.0 + -20a = 0 + -8.9
-20a = 0 + -8.9

Combine like terms: 0 + -8.9 = -8.9
-20a = -8.9

Divide each side by '-20'.
a = 0.445

Simplifying
a = 0.445

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