15=3(a+2)

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Solution for 15=3(a+2) equation:


Simplifying
15 = 3(a + 2)

Reorder the terms:
15 = 3(2 + a)
15 = (2 * 3 + a * 3)
15 = (6 + 3a)

Solving
15 = 6 + 3a

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 = 6 + 3a + -3a

Combine like terms: 3a + -3a = 0
15 + -3a = 6 + 0
15 + -3a = 6

Add '-15' to each side of the equation.
15 + -15 + -3a = 6 + -15

Combine like terms: 15 + -15 = 0
0 + -3a = 6 + -15
-3a = 6 + -15

Combine like terms: 6 + -15 = -9
-3a = -9

Divide each side by '-3'.
a = 3

Simplifying
a = 3

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