4x-400=100

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Solution for 4x-400=100 equation: 


Simplifying
4x + -400 = 100

Reorder the terms:
-400 + 4x = 100

Solving
-400 + 4x = 100

Solving for variable 'x'.

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

Add '400' to each side of the equation.
-400 + 400 + 4x = 100 + 400

Combine like terms: -400 + 400 = 0
0 + 4x = 100 + 400
4x = 100 + 400

Combine like terms: 100 + 400 = 500
4x = 500

Divide each side by '4'.
x = 125

Simplifying
x = 125

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