0=400+4x

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Solution for 0=400+4x equation: 


Simplifying
0 = 400 + 4x

Solving
0 = 400 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
0 + -4x = 400 + 4x + -4x
Remove the zero:
-4x = 400 + 4x + -4x

Combine like terms: 4x + -4x = 0
-4x = 400 + 0
-4x = 400

Divide each side by '-4'.
x = -100

Simplifying
x = -100

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