16=2(x+21)

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Solution for 16=2(x+21) equation: 


Simplifying
16 = 2(x + 21)

Reorder the terms:
16 = 2(21 + x)
16 = (21 * 2 + x * 2)
16 = (42 + 2x)

Solving
16 = 42 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
16 + -2x = 42 + 2x + -2x

Combine like terms: 2x + -2x = 0
16 + -2x = 42 + 0
16 + -2x = 42

Add '-16' to each side of the equation.
16 + -16 + -2x = 42 + -16

Combine like terms: 16 + -16 = 0
0 + -2x = 42 + -16
-2x = 42 + -16

Combine like terms: 42 + -16 = 26
-2x = 26

Divide each side by '-2'.
x = -13

Simplifying
x = -13

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