5=a+15

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Solution for 5=a+15 equation:


Simplifying
5 = a + 15

Reorder the terms:
5 = 15 + a

Solving
5 = 15 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
5 + -1a = 15 + a + -1a

Combine like terms: a + -1a = 0
5 + -1a = 15 + 0
5 + -1a = 15

Add '-5' to each side of the equation.
5 + -5 + -1a = 15 + -5

Combine like terms: 5 + -5 = 0
0 + -1a = 15 + -5
-1a = 15 + -5

Combine like terms: 15 + -5 = 10
-1a = 10

Divide each side by '-1'.
a = -10

Simplifying
a = -10

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