.5(8a+4)=18

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Solution for .5(8a+4)=18 equation: 


Simplifying
0.5(8a + 4) = 18

Reorder the terms:
0.5(4 + 8a) = 18
(4 * 0.5 + 8a * 0.5) = 18
(2 + 4a) = 18

Solving
2 + 4a = 18

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 4a = 18 + -2

Combine like terms: 2 + -2 = 0
0 + 4a = 18 + -2
4a = 18 + -2

Combine like terms: 18 + -2 = 16
4a = 16

Divide each side by '4'.
a = 4

Simplifying
a = 4

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