3x-e=r

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Solution for 3x-e=r equation:


Simplifying
3x + -1e = r

Reorder the terms:
-1e + 3x = r

Solving
-1e + 3x = r

Solving for variable 'e'.

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

Add '-3x' to each side of the equation.
-1e + 3x + -3x = r + -3x

Combine like terms: 3x + -3x = 0
-1e + 0 = r + -3x
-1e = r + -3x

Divide each side by '-1'.
e = -1r + 3x

Simplifying
e = -1r + 3x

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