3x+42+40-4x=0

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Solution for 3x+42+40-4x=0 equation:


Simplifying
3x + 42 + 40 + -4x = 0

Reorder the terms:
42 + 40 + 3x + -4x = 0

Combine like terms: 42 + 40 = 82
82 + 3x + -4x = 0

Combine like terms: 3x + -4x = -1x
82 + -1x = 0

Solving
82 + -1x = 0

Solving for variable 'x'.

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

Add '-82' to each side of the equation.
82 + -82 + -1x = 0 + -82

Combine like terms: 82 + -82 = 0
0 + -1x = 0 + -82
-1x = 0 + -82

Combine like terms: 0 + -82 = -82
-1x = -82

Divide each side by '-1'.
x = 82

Simplifying
x = 82

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