.5a+9=13

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Solution for .5a+9=13 equation: 


Simplifying
0.5a + 9 = 13

Reorder the terms:
9 + 0.5a = 13

Solving
9 + 0.5a = 13

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + 0.5a = 13 + -9

Combine like terms: 9 + -9 = 0
0 + 0.5a = 13 + -9
0.5a = 13 + -9

Combine like terms: 13 + -9 = 4
0.5a = 4

Divide each side by '0.5'.
a = 8

Simplifying
a = 8

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