2a-40=205

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Solution for 2a-40=205 equation: 


Simplifying
2a + -40 = 205

Reorder the terms:
-40 + 2a = 205

Solving
-40 + 2a = 205

Solving for variable 'a'.

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

Add '40' to each side of the equation.
-40 + 40 + 2a = 205 + 40

Combine like terms: -40 + 40 = 0
0 + 2a = 205 + 40
2a = 205 + 40

Combine like terms: 205 + 40 = 245
2a = 245

Divide each side by '2'.
a = 122.5

Simplifying
a = 122.5

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