a+(a+3)+(a*2)=15

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


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

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

Remove parenthesis around (3 + a)
a + 3 + a + (a * 2) = 15

Reorder the terms for easier multiplication:
a + 3 + a + (2a) = 15

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

Combine like terms: a + a = 2a
3 + 2a + (2a) = 15

Combine like terms: 2a + (2a) = 4a
3 + 4a = 15

Solving
3 + 4a = 15

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 4a = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 4a = 15 + -3
4a = 15 + -3

Combine like terms: 15 + -3 = 12
4a = 12

Divide each side by '4'.
a = 3

Simplifying
a = 3

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