400=12(x+12)

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Solution for 400=12(x+12) equation:


Simplifying
400 = 12(x + 12)

Reorder the terms:
400 = 12(12 + x)
400 = (12 * 12 + x * 12)
400 = (144 + 12x)

Solving
400 = 144 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
400 + -12x = 144 + 12x + -12x

Combine like terms: 12x + -12x = 0
400 + -12x = 144 + 0
400 + -12x = 144

Add '-400' to each side of the equation.
400 + -400 + -12x = 144 + -400

Combine like terms: 400 + -400 = 0
0 + -12x = 144 + -400
-12x = 144 + -400

Combine like terms: 144 + -400 = -256
-12x = -256

Divide each side by '-12'.
x = 21.33333333

Simplifying
x = 21.33333333

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