3a-0.5=7

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Solution for 3a-0.5=7 equation: 


Simplifying
3a + -0.5 = 7

Reorder the terms:
-0.5 + 3a = 7

Solving
-0.5 + 3a = 7

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 + 3a = 7 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 3a = 7 + 0.5
3a = 7 + 0.5

Combine like terms: 7 + 0.5 = 7.5
3a = 7.5

Divide each side by '3'.
a = 2.5

Simplifying
a = 2.5

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