2(a+9)=23

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Solution for 2(a+9)=23 equation: 


Simplifying
2(a + 9) = 23

Reorder the terms:
2(9 + a) = 23
(9 * 2 + a * 2) = 23
(18 + 2a) = 23

Solving
18 + 2a = 23

Solving for variable 'a'.

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

Add '-18' to each side of the equation.
18 + -18 + 2a = 23 + -18

Combine like terms: 18 + -18 = 0
0 + 2a = 23 + -18
2a = 23 + -18

Combine like terms: 23 + -18 = 5
2a = 5

Divide each side by '2'.
a = 2.5

Simplifying
a = 2.5

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