30x=31x-4

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Solution for 30x=31x-4 equation: 


Simplifying
30x = 31x + -4

Reorder the terms:
30x = -4 + 31x

Solving
30x = -4 + 31x

Solving for variable 'x'.

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

Add '-31x' to each side of the equation.
30x + -31x = -4 + 31x + -31x

Combine like terms: 30x + -31x = -1x
-1x = -4 + 31x + -31x

Combine like terms: 31x + -31x = 0
-1x = -4 + 0
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4

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