400-2x=100+4x

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Solution for 400-2x=100+4x equation:


Simplifying
400 + -2x = 100 + 4x

Solving
400 + -2x = 100 + 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.
400 + -2x + -4x = 100 + 4x + -4x

Combine like terms: -2x + -4x = -6x
400 + -6x = 100 + 4x + -4x

Combine like terms: 4x + -4x = 0
400 + -6x = 100 + 0
400 + -6x = 100

Add '-400' to each side of the equation.
400 + -400 + -6x = 100 + -400

Combine like terms: 400 + -400 = 0
0 + -6x = 100 + -400
-6x = 100 + -400

Combine like terms: 100 + -400 = -300
-6x = -300

Divide each side by '-6'.
x = 50

Simplifying
x = 50

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