(3x-4)=42

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Solution for (3x-4)=42 equation:


Simplifying
(3x + -4) = 42

Reorder the terms:
(-4 + 3x) = 42

Remove parenthesis around (-4 + 3x)
-4 + 3x = 42

Solving
-4 + 3x = 42

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 3x = 42 + 4

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

Combine like terms: 42 + 4 = 46
3x = 46

Divide each side by '3'.
x = 15.33333333

Simplifying
x = 15.33333333

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