6x-30=2*42

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Solution for 6x-30=2*42 equation: 


Simplifying
6x + -30 = 2 * 42

Reorder the terms:
-30 + 6x = 2 * 42

Multiply 2 * 42
-30 + 6x = 84

Solving
-30 + 6x = 84

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 6x = 84 + 30

Combine like terms: -30 + 30 = 0
0 + 6x = 84 + 30
6x = 84 + 30

Combine like terms: 84 + 30 = 114
6x = 114

Divide each side by '6'.
x = 19

Simplifying
x = 19

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