15-2a=-3(3a+1)-2a

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Solution for 15-2a=-3(3a+1)-2a equation:


Simplifying
15 + -2a = -3(3a + 1) + -2a

Reorder the terms:
15 + -2a = -3(1 + 3a) + -2a
15 + -2a = (1 * -3 + 3a * -3) + -2a
15 + -2a = (-3 + -9a) + -2a

Combine like terms: -9a + -2a = -11a
15 + -2a = -3 + -11a

Solving
15 + -2a = -3 + -11a

Solving for variable 'a'.

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

Add '11a' to each side of the equation.
15 + -2a + 11a = -3 + -11a + 11a

Combine like terms: -2a + 11a = 9a
15 + 9a = -3 + -11a + 11a

Combine like terms: -11a + 11a = 0
15 + 9a = -3 + 0
15 + 9a = -3

Add '-15' to each side of the equation.
15 + -15 + 9a = -3 + -15

Combine like terms: 15 + -15 = 0
0 + 9a = -3 + -15
9a = -3 + -15

Combine like terms: -3 + -15 = -18
9a = -18

Divide each side by '9'.
a = -2

Simplifying
a = -2

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