2(x+8)-5=21

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Solution for 2(x+8)-5=21 equation: 


Simplifying
2(x + 8) + -5 = 21

Reorder the terms:
2(8 + x) + -5 = 21
(8 * 2 + x * 2) + -5 = 21
(16 + 2x) + -5 = 21

Reorder the terms:
16 + -5 + 2x = 21

Combine like terms: 16 + -5 = 11
11 + 2x = 21

Solving
11 + 2x = 21

Solving for variable 'x'.

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

Add '-11' to each side of the equation.
11 + -11 + 2x = 21 + -11

Combine like terms: 11 + -11 = 0
0 + 2x = 21 + -11
2x = 21 + -11

Combine like terms: 21 + -11 = 10
2x = 10

Divide each side by '2'.
x = 5

Simplifying
x = 5

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