45+2a=85

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Solution for 45+2a=85 equation: 


Simplifying
45 + 2a = 85

Solving
45 + 2a = 85

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 + 2a = 85 + -45

Combine like terms: 45 + -45 = 0
0 + 2a = 85 + -45
2a = 85 + -45

Combine like terms: 85 + -45 = 40
2a = 40

Divide each side by '2'.
a = 20

Simplifying
a = 20

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