400-2a=472

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Solution for 400-2a=472 equation: 


Simplifying
400 + -2a = 472

Solving
400 + -2a = 472

Solving for variable 'a'.

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

Add '-400' to each side of the equation.
400 + -400 + -2a = 472 + -400

Combine like terms: 400 + -400 = 0
0 + -2a = 472 + -400
-2a = 472 + -400

Combine like terms: 472 + -400 = 72
-2a = 72

Divide each side by '-2'.
a = -36

Simplifying
a = -36

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