15-4x=42-4x

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Solution for 15-4x=42-4x equation: 


Simplifying
15 + -4x = 42 + -4x

Add '4x' to each side of the equation.
15 + -4x + 4x = 42 + -4x + 4x

Combine like terms: -4x + 4x = 0
15 + 0 = 42 + -4x + 4x
15 = 42 + -4x + 4x

Combine like terms: -4x + 4x = 0
15 = 42 + 0
15 = 42

Solving
15 = 42

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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