a*4=20

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Solution for a*4=20 equation: 


Simplifying
a * 4 = 20

Reorder the terms for easier multiplication:
4a = 20

Solving
4a = 20

Solving for variable 'a'.

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

Divide each side by '4'.
a = 5

Simplifying
a = 5

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