45+a=75

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Solution for 45+a=75 equation: 


Simplifying
45 + a = 75

Solving
45 + a = 75

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 = 75 + -45

Combine like terms: 45 + -45 = 0
0 + a = 75 + -45
a = 75 + -45

Combine like terms: 75 + -45 = 30
a = 30

Simplifying
a = 30

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