2(x+9)+3=21

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Solution for 2(x+9)+3=21 equation: 


Simplifying
2(x + 9) + 3 = 21

Reorder the terms:
2(9 + x) + 3 = 21
(9 * 2 + x * 2) + 3 = 21
(18 + 2x) + 3 = 21

Reorder the terms:
18 + 3 + 2x = 21

Combine like terms: 18 + 3 = 21
21 + 2x = 21

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

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

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

Solving
2x = 0

Solving for variable 'x'.

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

Divide each side by '2'.
x = 0

Simplifying
x = 0

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