15=3a-b

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Solution for 15=3a-b equation:


Simplifying
15 = 3a + -1b

Solving
15 = 3a + -1b

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
15 + -3a = 3a + -3a + -1b

Combine like terms: 3a + -3a = 0
15 + -3a = 0 + -1b
15 + -3a = -1b

Add '-15' to each side of the equation.
15 + -15 + -3a = -15 + -1b

Combine like terms: 15 + -15 = 0
0 + -3a = -15 + -1b
-3a = -15 + -1b

Divide each side by '-3'.
a = 5 + 0.3333333333b

Simplifying
a = 5 + 0.3333333333b

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