3a-5=15

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Solution for 3a-5=15 equation: 


Simplifying
3a + -5 = 15

Reorder the terms:
-5 + 3a = 15

Solving
-5 + 3a = 15

Solving for variable 'a'.

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

Add '5' to each side of the equation.
-5 + 5 + 3a = 15 + 5

Combine like terms: -5 + 5 = 0
0 + 3a = 15 + 5
3a = 15 + 5

Combine like terms: 15 + 5 = 20
3a = 20

Divide each side by '3'.
a = 6.666666667

Simplifying
a = 6.666666667

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