a-0.5=3.5

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Solution for a-0.5=3.5 equation: 


Simplifying
a + -0.5 = 3.5

Reorder the terms:
-0.5 + a = 3.5

Solving
-0.5 + a = 3.5

Solving for variable 'a'.

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

Add '0.5' to each side of the equation.
-0.5 + 0.5 + a = 3.5 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + a = 3.5 + 0.5
a = 3.5 + 0.5

Combine like terms: 3.5 + 0.5 = 4
a = 4

Simplifying
a = 4

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