2(x+4)+3=21

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Solution for 2(x+4)+3=21 equation: 


Simplifying
2(x + 4) + 3 = 21

Reorder the terms:
2(4 + x) + 3 = 21
(4 * 2 + x * 2) + 3 = 21
(8 + 2x) + 3 = 21

Reorder the terms:
8 + 3 + 2x = 21

Combine like terms: 8 + 3 = 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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