x+(x+42)=66

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Solution for x+(x+42)=66 equation:


Simplifying
x + (x + 42) = 66

Reorder the terms:
x + (42 + x) = 66

Remove parenthesis around (42 + x)
x + 42 + x = 66

Reorder the terms:
42 + x + x = 66

Combine like terms: x + x = 2x
42 + 2x = 66

Solving
42 + 2x = 66

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + 2x = 66 + -42

Combine like terms: 42 + -42 = 0
0 + 2x = 66 + -42
2x = 66 + -42

Combine like terms: 66 + -42 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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