53-a=15

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Solution for 53-a=15 equation: 


Simplifying
53 + -1a = 15

Solving
53 + -1a = 15

Solving for variable 'a'.

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

Add '-53' to each side of the equation.
53 + -53 + -1a = 15 + -53

Combine like terms: 53 + -53 = 0
0 + -1a = 15 + -53
-1a = 15 + -53

Combine like terms: 15 + -53 = -38
-1a = -38

Divide each side by '-1'.
a = 38

Simplifying
a = 38

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