2a-45+a=180

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Solution for 2a-45+a=180 equation:


Simplifying
2a + -45 + a = 180

Reorder the terms:
-45 + 2a + a = 180

Combine like terms: 2a + a = 3a
-45 + 3a = 180

Solving
-45 + 3a = 180

Solving for variable 'a'.

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

Add '45' to each side of the equation.
-45 + 45 + 3a = 180 + 45

Combine like terms: -45 + 45 = 0
0 + 3a = 180 + 45
3a = 180 + 45

Combine like terms: 180 + 45 = 225
3a = 225

Divide each side by '3'.
a = 75

Simplifying
a = 75

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