2[x+3]=42

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Solution for 2[x+3]=42 equation: 


Simplifying
2[x + 3] = 42

Reorder the terms:
2[3 + x] = 42
[3 * 2 + x * 2] = 42
[6 + 2x] = 42

Solving
6 + 2x = 42

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 2x = 42 + -6

Combine like terms: 6 + -6 = 0
0 + 2x = 42 + -6
2x = 42 + -6

Combine like terms: 42 + -6 = 36
2x = 36

Divide each side by '2'.
x = 18

Simplifying
x = 18

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