a+2(a-3)=15

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


Simplifying
a + 2(a + -3) = 15

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

Reorder the terms:
-6 + a + 2a = 15

Combine like terms: a + 2a = 3a
-6 + 3a = 15

Solving
-6 + 3a = 15

Solving for variable 'a'.

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

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

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

Combine like terms: 15 + 6 = 21
3a = 21

Divide each side by '3'.
a = 7

Simplifying
a = 7

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