2x+2*(x+6)=640

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Solution for 2x+2*(x+6)=640 equation: 


Simplifying
2x + 2(x + 6) = 640

Reorder the terms:
2x + 2(6 + x) = 640
2x + (6 * 2 + x * 2) = 640
2x + (12 + 2x) = 640

Reorder the terms:
12 + 2x + 2x = 640

Combine like terms: 2x + 2x = 4x
12 + 4x = 640

Solving
12 + 4x = 640

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 4x = 640 + -12

Combine like terms: 12 + -12 = 0
0 + 4x = 640 + -12
4x = 640 + -12

Combine like terms: 640 + -12 = 628
4x = 628

Divide each side by '4'.
x = 157

Simplifying
x = 157

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