400=8a

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Solution for 400=8a equation:


Simplifying
400 = 8a

Solving
400 = 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
400 + -8a = 8a + -8a

Combine like terms: 8a + -8a = 0
400 + -8a = 0

Add '-400' to each side of the equation.
400 + -400 + -8a = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -8a = 0 + -400
-8a = 0 + -400

Combine like terms: 0 + -400 = -400
-8a = -400

Divide each side by '-8'.
a = 50

Simplifying
a = 50

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