45+a=72

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Solution for 45+a=72 equation: 


Simplifying
45 + a = 72

Solving
45 + a = 72

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 + a = 72 + -45

Combine like terms: 45 + -45 = 0
0 + a = 72 + -45
a = 72 + -45

Combine like terms: 72 + -45 = 27
a = 27

Simplifying
a = 27

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