69*2-a=45

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Solution for 69*2-a=45 equation: 


Simplifying
69 * 2 + -1a = 45

Multiply 69 * 2
138 + -1a = 45

Solving
138 + -1a = 45

Solving for variable 'a'.

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

Add '-138' to each side of the equation.
138 + -138 + -1a = 45 + -138

Combine like terms: 138 + -138 = 0
0 + -1a = 45 + -138
-1a = 45 + -138

Combine like terms: 45 + -138 = -93
-1a = -93

Divide each side by '-1'.
a = 93

Simplifying
a = 93

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