4x=2x-42

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Solution for 4x=2x-42 equation: 


Simplifying
4x = 2x + -42

Reorder the terms:
4x = -42 + 2x

Solving
4x = -42 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
4x + -2x = -42 + 2x + -2x

Combine like terms: 4x + -2x = 2x
2x = -42 + 2x + -2x

Combine like terms: 2x + -2x = 0
2x = -42 + 0
2x = -42

Divide each side by '2'.
x = -21

Simplifying
x = -21

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